Unit Converter
Convert length, temperature, area, volume, weight, time, and speed.
1 Meter (m) = 0.001 Kilometer (km)
Common conversions
How it works
Pick a category
Length, temperature, area, volume, weight, time, or speed. Each list is the common units for that kind of measure.
Enter a value
Choose from and to. The result updates as you type. Swap reverses the units and puts the result in the from field.
Copy the result
Copy sits next to the To field. The line under the fields restates the pair, for example 1 meter = 0.001 kilometer.
What is a unit converter?
A unit is a named amount used to measure a physical quantity: a meter of length, a kilogram of mass, a second of time. The International System of Units (SI) is the usual scientific base. A unit converter restates the same quantity in another unit of that kind, for example 1 meter = 0.001 kilometer or 0 °C = 32 °F. This page covers length, temperature, area, volume, weight, time, and speed. Swap reverses the pair. Copy sits next to the result.
Why use this tool
- Length, temperature, area, volume, weight, time, and speed
- Swap from and to. Result updates as you type
- Copy next to the output. Common pairs as one-tap chips
- SI bases plus inch, pound, and US kitchen units
- No account. Unlimited on the free plan
Questions
What does Unit Converter do?
It converts a number from one unit to another in the same category: length, temperature, area, volume, weight, time, or speed.
How do I use Unit Converter?
Pick a category, enter a value, set from and to. The result updates as you type. Swap flips the pair. Copy sits next to the result.
Which categories are included?
Length (meter, inch, mile), temperature (Celsius, Fahrenheit, Kelvin), area, volume (liter and US kitchen units), weight (kilogram, pound), time, and speed. Data sizes are on Bit / Byte Converter. Number bases are on Number Base Converter.
Are the factors exact?
SI factors are exact. Inch, pound, and US gallon use the international yard and avoirdupois pound and the US liquid gallon. Kitchen spoons are US. Temperature uses the usual C/F/K formulas.
How do I convert cm to inches?
Open Length, or tap the cm → in chip. Enter the centimeter value. The inch result updates as you type. Copy sits next to the To field.
Does swap keep my number?
Swap exchanges from and to, and puts the current result into the from field so you can keep converting.
Is this the International System of Units?
Length, mass, and temperature bases are SI (meter, kilogram, Kelvin/Celsius). Imperial and US customary units are converted from those bases.
Can I convert currency?
No. Currency needs a live rate. This page is physical units only.
Is there a daily limit?
No. There is no daily cap on this tool.
Do I need an account?
No. Open the page and use it.
Does it work on a phone?
Yes. It runs in the mobile browser.
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