Unit Converter
Free precise unit converters for length, mass, temperature, time, volume, speed, energy, pressure, area and related categories.
Length
Meters, feet, miles…
Mass
Kilograms, pounds…
Temperature
Celsius, Fahrenheit, Kelvin
Time
Seconds, minutes, hours…
Volume
Liters, gallons…
Speed
km/h, mph, knots…
Energy
Joules, calories, kWh…
Pressure
Pascal, bar, psi…
Area
Square meters, acres…
Angle
Degrees, radians…
Data Storage
Bytes, KB, MB, GB…
Force
Newtons, pound-force…
Torque
Newton-meters…
Acceleration
m/s², g-force…
Flow Rate
Liters per minute…
Illuminance
Lux, foot-candles…
Luminous Flux
Lumens, candelas…
Magnetism
Tesla, gauss…
Power
Watts, kilowatts, horsepower…
Frequency
Hertz, megahertz, gigahertz…
Data Transfer Rate
Mbps, Gbps, MB/s…
Electric Current
Amperes, milliamperes…
Voltage
Volts, millivolts, kilovolts…
Density
kg/m³, g/cm³…
About Unit Converters
Unit converters cover engineering and everyday measurements using standard conversion factors. Switch between metric, imperial and scientific units instantly — ideal for homework, recipes, lab notes and field calculations.
Best for
- Metric ↔ imperial length and mass checks
- Temperature conversions for cooking or weather
- Engineering pressure and energy calculations
- Quick volume and speed conversions on the go
Pros
- +High-precision standard constants
- +Dozens of categories in one hub
- +Instant results, no signup
- +Works on phone and desktop
Cons
- −Specialized lab calibrations may need certified tools
- −Currency is handled in a separate category
- −Does not replace domain-specific calculators
How to use Unit Converter tools
- 1
Pick the Unit Converter tool you need from the list below — every tool runs locally in your browser.
- 2
Upload your file(s) from your PC, Mac or mobile device, or simply drag and drop them onto the page. You can add more files to process them together.
- 3
Use the gear icon to specify codec, quality, aspect ratio or other settings and apply them to all files if you want.
- 4
Click Convert to start the process. When the conversion finishes, download the result or save it back to Google Drive / Dropbox.
Frequently Asked Questions
Are unit converters free?
Which systems are supported?
How accurate are conversions?
Can I convert Celsius to Fahrenheit?
Is currency included?
Do converters work offline?
Can I convert scientific units?
Are results rounded?
100% Free
No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.
No Signup Required
Start converting immediately without creating an account or sharing email address.
Private & Secure
Your files never leave your device. All processing is completed locally for maximum privacy.
Batch Conversion
Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.
Runs in Browser
Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.
200+ Formats
Supports a wide variety of formats including images, documents, audio, video, and more.
Unit Converter Quality Rating
How was your experience? You need to convert and download at least one file to provide feedback!