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Unit converter

Switch between metric and imperial — temperature, distance, weight, height, volume. Type in either field and the other updates automatically.

°C
°F

Author's note: the conversion factors here are the international standard values (1 km = 0.621371 mi, 1 kg = 2.204623 lb, etc.). The habit that helps most day to day: remember three anchors — 0 °C = freezing, 20 °C = comfortable, 100 km/h = highway speed limit.

What this calculator includes

  • Temperature, distance, weight, height and volume
  • Metric ↔ imperial conversions
  • Common units: °C/°F, km/mi, kg/lb, cm/in, L/gal
  • Instant results as you type

Frequently Asked Questions

Your questions about this tool

Answers to the questions readers ask most often about this calculator — what it computes, the figures used, and how to use it.

Open the full FAQ →
Does Canada use metric or imperial?+
Canada is officially metric: weather is in Celsius, distances in kilometres, groceries in grams and kilograms, gas in litres. But imperial usage lingers in daily life: people's height is often given in feet and inches, body weight in pounds, and cooking mixes both.
How do I convert Celsius to Fahrenheit quickly?+
The exact formula is °F = °C × 9/5 + 32. For a rough mental estimate: double the Celsius and add 30. For example, 20 °C ≈ 70 °F (the exact formula gives 68 °F). The shortcut is good enough to read the weather.
Why doesn't my height in feet match a round number in cm?+
Because the two systems share no common reference points. 5 feet 9 inches is about 175 cm. This converter automatically shows the feet-and-inches equivalent under the "height" field.
Is my data saved?+
No. The conversion runs entirely in your browser: no information is sent to or stored on our servers.
Unit converter (metric ↔ imperial) | VieauQc