Unit & Value Converters

Access a wide range of converters for units, values, and measurements across categories like length, area, volume, physics, and chemistry. These tools help you quickly and accurately convert between different systems and scales — ideal for students, engineers, and everyday use.

Meters to Feet

Easily convert meters to feet with this fast and precise converter. Ideal for architects, engineers, travelers, or anyone needing to switch between metric and imperial length measurements. Just enter the value in meters to get the equivalent in feet instantly.

Acres to Square Meters

Use this simple converter to convert acres to square meters instantly. Whether you're calculating land size for property, farming, or planning, this tool provides an accurate and efficient way to switch between imperial and metric units.

Square Feet to Acres

Convert square feet to acres quickly and accurately using this online tool. Ideal for land buyers, real estate agents, and developers needing to translate smaller land measurements into larger-scale acre values.

Hectares to Square Kilometers

Quickly convert hectares to square kilometers with this straightforward converter. Ideal for large-scale land area calculations in agriculture, geography, environmental science, and real estate development.

Frequency

Quickly convert between various units of frequency such as hertz, kilohertz, megahertz, gigahertz, and revolutions per minute (RPM). This tool is essential for professionals in electronics, audio engineering, physics, and telecommunications who need accurate frequency conversions.

Magnetomotive Force

Convert magnetomotive force (MMF) between units such as ampere-turns (At), gilberts (Gb), and kiloampere-turns (kAt). This tool is essential for electrical engineers, physicists, and magnetic circuit designers working with inductors, transformers, and magnetic field systems.

Mass Flux Density

Convert mass flux density between units like kg/(m²·s), g/(cm²·s), and lb/(ft²·h). This tool is essential for engineers and scientists working with fluid mechanics, heat and mass transfer, and environmental modeling.

Torque

Convert torque between units like newton-meters (N·m), pound-feet (lb·ft), kilogram-force meters (kgf·m), and more. This tool is essential for engineers, mechanics, and technicians working with engines, machinery, and mechanical systems.

Thermal Conductivity

Convert thermal conductivity between various units like watts per meter-kelvin (W/m·K), calories per second-centimeter-degree Celsius (cal/s·cm·°C), and BTU per hour-foot-degree Fahrenheit (BTU/hr·ft·°F). This tool is essential for engineers, scientists, and architects involved in heat transfer and material analysis.

Volume Table

Land Area Unit

This online Land Area Unit Converter helps you quickly switch between various units of land measurement such as square meters, square feet, acres, hectares, and more. It’s ideal for real estate agents, farmers, engineers, and anyone dealing with land size calculations.

Pressure

Convert pressure values between units like pascals (Pa), atmospheres (atm), bars, torr, mmHg, and psi. This tool is essential for engineers, scientists, and technicians working in physics, fluid mechanics, weather forecasting, and industrial applications.

Conductance Units

The Conductance Units Converter ensures accurate and reliable conversions between various electrical conductance units. Perfect for electrical engineers, physics students, and professionals working with circuits, it simplifies converting between siemens (S), mhos, and other less common units with precision.

Download Time Estimator

Calculate how long it will take to download a file based on its size and your internet connection speed. Just enter the file size in KB, MB, or GB, and instantly see the estimated time across different connection types, including Dial-Up, DSL, Cable, Wi-Fi, and high-speed business networks.

Astronomical Distance

Convert between astronomical units (AU), light years, parsecs, kilometers, and other cosmic distance measurements. This tool is essential for students, researchers, and space enthusiasts who work with interplanetary or interstellar distances in astronomy and astrophysics.

Pressure Converter

Use this convenient and accurate converter to switch between various pressure units including Pascal, Bar, PSI, mmHg, atm, and more. Ideal for engineers, scientists, and students working with fluid mechanics, weather data, or pressure system design.

Fahrenheit to Celsius, Kelvin & More

This converter makes it easy to convert Fahrenheit temperatures into Celsius, Kelvin, Rankine, Newton, Delisle, Reaumur, and Rømer. Whether for academic purposes, scientific research, or everyday weather comparisons, it ensures quick and precise conversions across all major temperature scales.

Kelvin to Celsius, Fahrenheit & More

This converter helps you transform temperatures from Kelvin into Celsius, Fahrenheit, Rankine, Newton, Delisle, Reaumur, and Rømer. Ideal for scientific, engineering, and academic use, it simplifies conversions across all key temperature scales with accurate results.

Rankine to Celsius, Fahrenheit & more

This converter allows you to convert temperatures from the Rankine scale to Celsius, Fahrenheit, Kelvin, and other common units. It’s especially useful in thermodynamics and engineering fields where Rankine is used for absolute temperature measurements.

Metric Prefix

Easily convert between metric units of different scales using standard prefixes like milli-, centi-, kilo-, mega-, and more. Just enter a value, choose the starting and target prefixes, and get accurate conversions across a wide range of magnitudes — perfect for science, engineering, and everyday use.

Electric Current

Easily convert electric charge measurements between various units with this precise and reliable tool. Whether you're working within the SI system or using specialized units, this converter supports smooth and accurate transitions between coulombs, ampere-hours, statcoulombs, and more — making it ideal for physics, electronics, and engineering applications.

Magnetic Flux

Convert magnetic flux between common units like weber (Wb), maxwell (Mx), and volt-seconds. This tool is perfect for physics students, electrical engineers, and scientists working in electromagnetism, transformers, and magnetic systems.

Light Luminance

Convert luminance units such as candela per square meter (cd/m²), nit, foot-lambert, and stilb with ease. This tool is ideal for professionals in lighting design, display technology, and optical engineering where luminance precision is critical.

Linear Current Density

Convert linear current density values between units such as amperes per meter (A/m), amperes per millimeter (A/mm), and other related formats. This tool is essential for professionals working with electromagnetism, power transmission, and coil or conductor design.

Permeability

Convert magnetic permeability values between units like henries per meter (H/m), newtons per ampere squared (N/A²), and gauss·oersted (G·Oe). This tool is ideal for physicists, electrical engineers, and researchers working with magnetic materials and field simulations.

Magnetic Flux Density

Convert magnetic flux density values between units like tesla (T), gauss (G), and webers per square meter (Wb/m²). This tool is essential for physicists, electrical engineers, and anyone working with magnetic fields in transformers, MRI machines, or inductive systems.

Moment of Inertia

Convert moment of inertia values between different units such as kg·m², g·cm², lb·ft², and oz·in². This tool is essential for mechanical engineers, physicists, and anyone working with rotating bodies or dynamic systems.

Yarn Count

Calculate the yarn count used in textile manufacturing by inputting the number of bundles, the length per bundle, and the total yarn weight. This tool is ideal for textile engineers, spinners, and fabric producers looking for accurate count values for different yarn systems.

Celsius to Fahrenheit, Kelvin & More

This converter takes the guesswork out of temperature differences and makes navigating different temperature scales a breeze. It supports Celsius to Fahrenheit, Kelvin, Rankine, Newton, Delisle, Reaumur, and Rømer — ideal for scientific, academic, and everyday use.

Henry’s Law

Convert Henry’s law constants between various units such as mol/(L·atm), atm·L/mol, and Pa·m³/mol. This tool is essential for chemists and engineers working with gas solubility, ensuring accurate transformations across scientific data and research standards.

Lumens to Watts

Convert lumens to watts to estimate the power consumption of light sources based on their luminous efficacy. This tool is perfect for lighting designers, energy consultants, and anyone comparing energy efficiency across LED, incandescent, CFL, and other lighting technologies.

Luminous Intensity

Convert luminous intensity values between various units such as candela (cd), millicandela (mcd), and candlepower (cp). This tool is ideal for lighting professionals, display engineers, and physicists working with point light sources and directional lighting systems.

Weight or Mass

Convert between different units of weight or mass, from everyday metric units like grams and kilograms to specialized systems such as Troy, Avoirdupois, and Apothecaries. Perfect for science, cooking, precious metals, and historical measurements.

Light Illumination

Convert units of light illumination such as lux, foot-candles, phot, and lumens per square meter. This tool is ideal for lighting designers, architects, photographers, and engineers working on lighting calculations and visual environments.

Molar Concentration

This online tool ensures accurate conversions between molar concentration units, helping you to obtain reliable and consistent results in your experiments, research, or calculations. It supports various units such as mol/L, mmol/L, mol/m³, and more.

Knitted Fabric GSM

Quickly calculate the GSM (grams per square meter) of knitted fabrics using Course Per Inch, Stitch Length, and Tex. This tool is essential for textile professionals, helping with fabric selection, production planning, and maintaining quality standards in knitting operations.

Heat Transfer

Easily convert heat transfer values across various units such as watts (W), calories per second (cal/s), BTU per hour (BTU/hr), and kilowatts (kW). This tool is perfect for engineers, physicists, and HVAC professionals dealing with thermal systems and energy flow calculations.

Heat Flux Density

Convert heat flux density between multiple units such as watts per square meter (W/m²), kilowatts per square meter (kW/m²), calories per second per square centimeter (cal/s·cm²), and more. This tool is ideal for thermal engineers, physicists, and researchers working with heat transfer and energy systems.

Force

Easily convert force measurements between various units such as newtons, dynes, pound-force, and kilogram-force. This tool is essential for physics, mechanics, engineering, and structural calculations, ensuring accurate and consistent results across different unit systems.

Molar Flow Rate

Convert molar flow rate units such as mol/s, mol/min, kmol/h, and mmol/s with ease. This tool is perfect for chemical engineers, process designers, and researchers working with reaction kinetics, gas flow systems, and chemical reactors.

Mass Flow Rate

Convert mass flow rate between units such as kilograms per second (kg/s), grams per minute (g/min), pounds per hour (lb/h), and tons per day (t/d). This tool is ideal for engineers and scientists working with fluid dynamics, process engineering, or HVAC systems.

Sound

Convert sound-related values between different acoustic units such as decibels (dB), sound pressure (Pa), sound intensity (W/m²), and sound power (W). This tool is essential for audio engineers, acousticians, and researchers working with noise levels, sound systems, and environmental acoustics.

Specific Heat

Convert specific heat capacity between various units such as J/(kg·K), cal/(g·°C), BTU/(lb·°F), and more. This tool is ideal for engineers, chemists, and physicists working with thermodynamic calculations, material science, and heat transfer systems.

Thermal Expansion

Convert thermal expansion coefficients between units like 1/K (per kelvin), 1/°C (per degree Celsius), and microstrain per degree. This tool is ideal for engineers, material scientists, and architects who need to account for dimensional changes in solids due to temperature fluctuations.

Electrical Resistivity

Convert electrical resistivity units with precision and ease using this specialized tool. Whether you're working in physics, materials science, or electrical engineering, this converter allows you to switch between ohm-meters (Ω·m), ohm-centimeters (Ω·cm), microohm-centimeters (μΩ·cm), and more.

Surface Charge Density

Convert surface charge density values between units like coulombs per square meter (C/m²), statcoulombs per square centimeter (statC/cm²), and microcoulombs per square meter (μC/m²). This tool is ideal for applications in electrostatics, semiconductor physics, and material surface analysis.

Surface Current Density

Convert surface current density between units like amperes per meter (A/m), milliamperes per meter (mA/m), and statamperes per centimeter (statA/cm). This tool is essential for applications in electromagnetism, antenna design, and high-frequency circuit modeling.

Surface Tension

Convert surface tension values between units like newtons per meter (N/m), dynes per centimeter (dyn/cm), millinewtons per meter (mN/m), and more. This tool is ideal for chemists, physicists, and engineers working in fluid mechanics, materials science, and interfacial chemistry.

Radioactivity

Convert radioactivity measurements between units such as becquerels (Bq), curies (Ci), disintegrations per second (dps), and more. This tool is essential for nuclear medicine, radiation protection, and environmental monitoring, ensuring accurate conversions for radioactive source strength.

Radiation Exposure

Convert radiation exposure values between roentgens (R), coulombs per kilogram (C/kg), and other related units. This tool is useful for radiologists, physicists, health and safety specialists, and researchers dealing with ionizing radiation measurements and protection standards.

Feet Per Minute to CFM

Find the necessary CFM value easily using our online converter by entering the airflow speed in FPM and the cross-sectional area. You can select from various area units like mm², m², acre, and more for flexible and precise conversions.

Radiation Absorbed Dose

Convert absorbed radiation dose between grays (Gy), rads, and other related units. This tool is essential for professionals in radiology, nuclear physics, cancer therapy, and radiation safety who need accurate dose measurement conversions.

Water Weight

How much does 1 liter or 1 gallon of water weigh? Use this easy converter to find the water weight in grams, kilograms, pounds, and other units based on volume and temperature.

Volumetric Weight

Volumetric Weight Calculator is a convenient tool for businesses and individuals involved in shipping and logistics. It simplifies calculating volumetric weight, ensuring fair pricing, accurate cost estimation, and efficient use of cargo space.

Moles and Grams

The following converter simplifies the process of converting between grams and moles, making it easier for you to work with chemical quantities. It’s especially helpful in laboratory calculations, chemical equations, and molecular weight-based conversions.

Permille to Decimal and Meter

Permille (‰) is a unit representing one part per thousand. This converter allows you to easily transform permille values into decimal form or equivalent length in meters. Perfect for scientific, engineering, or general math usage.

Cubic Feet per Minute (CFM)

By inputting the airflow velocity (in feet per minute, FPM) and the area in square feet, you can calculate the required volume of air (in cubic feet per minute, CFM) for a specific space. Conversely, there is an option to calculate the necessary area or FPM based on the other two parameters.

Delisle to Celsius, Fahrenheit, Kelvin & More

If you come across temperature data in Delisle and need to integrate it with modern systems, this converter simplifies the process and ensures a smooth transition. Convert Delisle to Celsius, Fahrenheit, Kelvin, Rankine, Newton, Reaumur, and Rømer with one click.

Reaumur to Celsius, Fahrenheit & More

This converter makes it easy to convert temperatures from the Reaumur scale to Celsius, Fahrenheit, Kelvin, and other popular units. It’s perfect for interpreting historical data, scientific archives, or vintage recipes that use the Reaumur system.

Weight / Mass

Convert between various units of weight and mass including grams, kilograms, pounds, ounces, tons, drams, grains, and more. This versatile converter handles both metric and imperial units—ideal for science, engineering, fitness, cooking, and everyday use.

Digital Storage

Easily convert between digital data units such as bits, bytes, kilobytes, megabytes, gigabytes, and beyond. This tool is perfect for developers, IT professionals, and everyday users needing to understand file sizes, memory capacity, and bandwidth in both binary (1024-based) and decimal (1000-based) formats.

Calorific Value

Calorific Value Converter offers a convenient and efficient solution to measure the energy content of fuels and food in various units. Ideal for professionals in energy, engineering, and nutrition, this tool ensures precise conversions between units like kcal/kg, MJ/kg, BTU/lb, and more.

Acceleration Units

Convert between various acceleration units quickly and accurately. This tool is ideal for physics students, engineers, and professionals dealing with motion calculations. Easily switch between meters per second squared (m/s²), feet per second squared (ft/s²), g-force (g), Gal (gal), and other units used in different scientific and engineering contexts.

Length Universal Converter

Convert between any units of length or distance with this universal length converter. Whether you're switching from inches to centimeters, miles to kilometers, or yards to meters, this tool covers all standard and specialized units to meet your needs in science, engineering, everyday use, and beyond.

Volume Unit Universal

Easily convert between different volume units such as liters, milliliters, gallons, cubic meters, and more. This universal converter is ideal for cooking, shipping, engineering, and scientific calculations, offering accurate results across both metric and imperial systems.

Mass

Easily convert mass between different units such as kilograms, grams, pounds, ounces, tons, and more. This tool is perfect for science, cooking, engineering, and everyday use, offering fast and reliable mass unit conversions between metric, imperial, and other measurement systems.

Entropy Conversions

The Entropy converter offers a valuable resource for navigating the complexities of entropy in diverse contexts. Whether you're dealing with entropy changes in chemical reactions, thermodynamic systems, or data encoding, this tool provides accurate and fast conversions between different entropy units.

Energy

Convert energy measurements between various units including joules, calories, kilowatt-hours, BTUs, and more. This converter is essential for physics, engineering, nutrition, and energy-related calculations, ensuring fast and accurate unit transitions across different measurement systems.

Electric Field

Convert electric field strength between various units used in physics and engineering. This tool helps you seamlessly switch between volts per meter (V/m), kilovolts per meter (kV/m), newtons per coulomb (N/C), and other units, ensuring precision in your electromagnetic calculations.

Inductance

Easily convert inductance values between different units such as henries (H), millihenries (mH), microhenries (μH), and nanohenries (nH). This tool is perfect for engineers, electronics designers, and students working with coils, inductors, and AC circuits.

Linear Acceleration

Convert linear acceleration values between units like meters per second squared (m/s²), feet per second squared (ft/s²), standard gravity (g), Gal, and more. This tool is ideal for physics, automotive testing, and motion analysis.

Image DPI & Pixel

Convert between image resolution units such as DPI, PPI, pixels, and print dimensions (inches, cm). This tool is helpful for designers, photographers, and print professionals working with digital media and needing precise control over image clarity and output size.

Electric Static Potential

Convert electric static potential between different units with precision and ease. This converter is ideal for electrical engineers, physicists, and students needing to work across SI and CGS unit systems. Quickly switch between volts (V), statvolts, and electronvolts (eV) for accurate potential difference calculations.

Cooking Measurement

Convert between various cooking measurement units including teaspoons, tablespoons, cups, fluid ounces, milliliters, grams, and more. This tool is ideal for bakers, chefs, and home cooks working with international recipes or adapting ingredient quantities for different serving sizes.

Circle to Angle Units

Convert circular measurements like turns or revolutions into standard angle units such as degrees, radians, and gradians. This converter is essential for anyone working with rotational motion, geometry, or trigonometry.

Electric Charge

Electrical Capacitance

Quickly and accurately convert electrical capacitance values between various units. This tool is ideal for electronics professionals, engineers, and students working with capacitors and charge storage systems. Supports farads (F), microfarads (μF), nanofarads (nF), picofarads (pF), and other common units.

Unit & Value Converters

Basic units

Chemistry units

Land area units

Length units

Other units

Physics units

Volume units