Skip to main content
FetchToolKit logoFetchToolKitFetchToolKit

Unit Converter

Convert measurements across length, weight, temperature, digital data, area, and speed with an instant comparison table for every unit.

Free to useNo sign-up requiredWorks in your browserPrivacy focused

Unit Converter Workspace

How to use

  1. 1

    Step 1

    Select a measurement category at the top: Length, Weight & Mass, Temperature, Digital Storage, Area, or Speed.

  2. 2

    Step 2

    Enter your value and choose your From Unit and To Unit (or click Swap Units to flip them).

  3. 3

    Step 3

    View the converted result at the top or scan the All Equivalent Units table below to see every unit in that category at once.

Key features

  • Six essential measurement categories in one fast converter: Length, Weight, Temperature, Digital Storage, Area, and Speed
  • Live All Equivalent Units table converts your number into every unit in the category simultaneously
  • Exact formulas for Celsius, Fahrenheit, and Kelvin temperatures alongside metric and imperial scales
  • Click Use as Input on any row in the comparison table to switch to that unit immediately

Supported formats

MetricImperial

File limits & notes

Uses international standard metric and imperial conversion factors. Very large or very small numbers are automatically formatted cleanly so they remain easy to read.

Frequently asked questions

View all FAQs
Which measurement categories are supported?

You can convert Length (mm, cm, m, km, inches, feet, yards, miles), Weight (mg, g, kg, metric tons, oz, lb), Temperature (°C, °F, K), Digital Storage (B to TB), Area (sq m, acres, hectares, sq ft), and Speed (km/h, mph, m/s, knots).

How are Temperature conversions calculated differently from other units?

Unlike length or weight which scale from zero, Celsius, Fahrenheit, and Kelvin have different starting points, so the converter applies the exact offset formulas (such as °F = °C × 9/5 + 32).

Can I see all converted units in a category at the same time?

Yes. Below the main result card, the All Equivalent Units table displays your input value converted into every available unit in that category.

Practical Example: Converting Recipe Weights and Travel Distances

Sample Input
Converting 2.5 kilograms to pounds and ounces, or checking 100 kilometers in miles.
Result
Shows 2.5 kg equals 5.5116 lb (88.18 oz) and 100 km equals 62.1371 miles with one-click copy.