Precise by definition

Measure once.
Convert anything.

15 quick, dependable converters for the measurements that turn up in real life.

Instant resultsInternational standardsNo sign-up
Find your converter
15focused converters
2-wayeditable values
0accounts or uploads
12significant digits
Conversion bench

What are you measuring?

Choose a category. Every tool opens with a useful example and updates as you type.

1 m → ft

Length

Convert metric and imperial length units with editable values on both sides.

1 kg → lb

Weight

Convert common metric and imperial mass units without searching for formulas.

20 °C → °F

Temperature

Move between the four common temperature scales with no manual formula.

1 m² → ft²

Area

Convert land, floor and surface area across metric and imperial units.

1 L → US gal

Volume

Convert liquid and three-dimensional volume units while keeping US and Imperial measures distinct.

100 km/h → mph

Speed

Convert road, running, marine and scientific speed units immediately. Convert knots to mph, km/h and m/s with the exact nautical-mile factor.

1 bar → psi

Pressure

Convert scientific, weather, tyre and industrial pressure units.

1 kWh → MJ

Energy

Convert electrical, thermal, food and mechanical energy units.

1 kW → hp

Power

Convert electrical, engine and cooling power ratings without confusing power with energy.

100 N·m → lbf·ft

Torque

Convert automotive, fastening and engineering torque specifications across metric and customary units.

1 GB → GiB

Data Storage

Convert decimal storage labels and binary computing units without mixing them up.

100 Mbit/s → MB/s

Data Transfer Rate

Translate network speeds and file-transfer rates without confusing megabits with megabytes.

10 L/min → US gal/min

Flow Rate

Convert plumbing, pump, ventilation and process flow rates while keeping volume and time definitions explicit.

1 cup → mL

Cooking

Convert cooking volume measures while keeping regional cup and fluid-ounce sizes explicit.

30 imp mpg → L/100km

Fuel Economy

Compare vehicle fuel economy across US, UK and metric specifications without mixing gallon sizes.

Built for confidence

Clear answers need clear standards.

No mystery formulae or ambiguous unit names.

01

Edit either side

The result recalculates immediately in both directions.

02

See the exact unit

US, Imperial, decimal and binary measures stay clearly labelled.

03

Take the result

Copy a clean answer without registration or interruption.