Converters
16 converters for everyday units, science, engineering, and currency.
Unit Converter
One tool, 14 categories: length, weight, temperature, and more.
Length Converter
Millimeters to miles, metric and imperial.
Weight Converter
Grams, kilograms, pounds, stone, and tons.
Temperature Converter
Celsius, Fahrenheit, and Kelvin.
Area Converter
Square meters, acres, hectares, and square feet.
Volume Converter
Milliliters, liters, cups, and gallons.
Speed Converter
km/h, mph, knots, and m/s.
Time Converter
Seconds, minutes, hours, and years.
Data Storage Converter
Bytes, kilobytes, megabytes, gigabytes, terabytes.
Energy Converter
Joules, calories, kilowatt-hours, and BTU.
Pressure Converter
psi, bar, pascal, atmosphere, and mmHg.
Power Converter
Watts, kilowatts, and horsepower.
Frequency Converter
Hertz, kilohertz, megahertz, and RPM.
Fuel Consumption Converter
L/100km, MPG (US/UK), and km/L.
Angle Converter
Degrees, radians, gradians, and arcseconds.
Currency Converter
Live exchange rates for 29 world currencies.
About This Collection
Each converter below opens on its own page and focuses on a clear job, from converting kilometers to miles to checking today's currency exchange rate. Every calculation, aside from live currency rates, runs directly in your browser, so nothing you type is sent to a server or stored.
How to Pick the Right Converter
- Everyday distances, weight, or temperature → Length, Weight, or Temperature Converter
- Cooking and container sizes → Volume Converter
- Property, land, or room size → Area Converter
- Vehicles and travel → Speed or Fuel Consumption Converter
- Science and engineering → Energy, Pressure, Power, Frequency, or Angle Converter
- Tech and storage → Data Storage Converter
- Money → Currency Converter
- Need several categories in one place? → The all-in-one Unit Converter
What This Category Covers
- Sixteen single-purpose converters, each on its own dedicated page
- Consistent, simple controls with a swap button across every converter
- Support for both metric and imperial units wherever applicable
- Responsive layouts that work the same way on phones, tablets, and desktops
Frequently Asked Questions
How accurate are the results, and how many decimal places should I trust?
Conversions use precise, high-decimal factors, but the number of digits worth trusting depends on your original measurement. A value measured to two significant figures shouldn't be reported to six decimal places just because the tool displays them.
Is my data sent to a server?
No. Every conversion, aside from live currency rates, runs directly in your browser, and nothing you type is stored or transmitted.
Are kilograms and pounds the same kind of unit?
Not technically. Kilograms measure mass, while pounds are traditionally a unit of weight, which depends on gravity. For everyday, Earth-bound use, this converter treats them as interchangeable.
Which converter should I use for everyday unit conversions?
The Unit Converter covers 14 categories in one page. For a focused, single-purpose tool, use the dedicated converter for that category instead.
Does the Currency Converter use real-time rates?
It fetches live exchange rates when possible and falls back to a clearly labeled estimate if a live rate can't be reached.
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