Scientific Unit Converter
Convert length, mass, temperature, data, and more with fast, accurate results.
Result
How to use the scientific unit converter
1. Enter a value to convert
Enter the value you want to convert, including decimals for precise scientific work.
2. Choose the right category
Choose the category that matches your measurement, such as length, mass, temperature, data, and more.
3. Select your units
Select the unit you have and the unit you want to calculate, then double check the labels.
4. Convert and refine results
Click convert to get the result, then adjust precision to control rounding for reports.
Categories, descriptions, and unit lists
Browse every supported conversion category with a short description and the exact units we handle, so you can find the right match fast.
Length
Convert metric and imperial distance measurements for everyday or engineering tasks. Compare meters, kilometers, inches, feet, and miles in seconds.
Units:
m, km, cm, mm, um, nm, in, ft, yd, mi, nmi
Mass
Convert mass and weight across metric and imperial scales for shipping, cooking, and labs. Swap between kilograms, grams, pounds, ounces, and tons.
Units:
kg, g, mg, ug, lb, oz, st, t
Temperature
Convert Celsius, Fahrenheit, and Kelvin for science, weather, and HVAC work. Perfect for quick checks or lab reports.
Units:
c, f, k
Time
Convert milliseconds through weeks for schedules, logs, and calculations. Useful for time series and performance metrics.
Units:
ms, s, min, h, day, week
Area
Convert surface area for land, architecture, and geometry. Switch between square meters, acres, hectares, and more.
Units:
m2, km2, cm2, mm2, ha, acre, ft2, yd2, mi2
Volume
Convert liquid and cubic volume units for recipes, storage, and physics. Handle liters, milliliters, gallons, cups, and cubic units.
Units:
l, ml, m3, cm3, in3, ft3, gal, qt, pt, cup, floz
Speed
Convert velocity across metric, imperial, and nautical units. Compare km/h, mph, knots, and meters per second.
Units:
m/s, km/h, mph, knot, ft/s
Pressure
Convert pressure for physics, engineering, and atmospheric data. Includes pascals, bars, PSI, and atmospheres.
Units:
pa, kpa, mpa, bar, psi, atm, torr
Energy
Convert energy and calories for science, nutrition, and power usage. Move between joules, kWh, and calories.
Units:
j, kj, mj, cal, kcal, wh, kwh, ev
Power
Convert power output for electrical and mechanical systems. Switch between watts, kilowatts, megawatts, and horsepower.
Units:
w, kw, mw, hp
Data
Convert data sizes for storage, uploads, and bandwidth planning. Supports decimal and binary units from bytes to tebibytes.
Units:
bit, b, kb, mb, gb, tb, kib, mib, gib, tib
Angle
Convert angular measurements for geometry, navigation, and graphics. Use degrees, radians, grads, and arc units.
Units:
rad, deg, grad, arcmin, arcsec
Frequency
Convert frequency ranges for signals, audio, and radio. Move between Hz, kHz, MHz, and GHz.
Units:
hz, khz, mhz, ghz
Force
Convert force units for mechanics and physics calculations. Compare newtons, kilonewtons, and pound force.
Units:
n, kn, lbf