Length Converter
Convert between metres, kilometres, miles, feet, inches, yards, and nautical miles. Exact ratios.
Runs entirely in your browser. Nothing is sent to our servers.
About this tool
Converts between metric and imperial length units. Enter a value in any unit and see all the others instantly. Runs in your browser.
Canada uses both
Officially Canada is metric, but in practice we use both:
- Metric: road distances (km), weather (no, that's temperature; sorry), construction, science, sports.
- Imperial: personal height (feet/inches), lumber and building materials (2×4, etc.), TV sizes, monitor sizes, recipe ingredients.
This tool helps when you need to cross between them — like converting a US tire size, working with a recipe, or telling someone how tall you are in centimetres for a sports league registration.
Precision
All conversions use exact internationally-defined ratios: 1 in = 25.4 mm exactly, 1 ft = 0.3048 m exactly, 1 mi = 1609.344 m exactly, 1 nautical mile = 1852 m exactly. So conversions in either direction round-trip cleanly.
Frequently asked questions
- Why are there both nautical miles and statute miles?
- They're different units. A nautical mile is defined as one minute of arc along a meridian — about 1852 metres — and is used in aviation and shipping. A statute mile (the everyday "mile") is 1609.344 metres. They differ by about 15%, so it matters which one you use.
- Is a "klick" the same as a kilometre?
- Yes — "klick" or "click" is military slang for kilometre. 5 klicks = 5 km.
- Do you support furlongs or hands?
- Not in this tool. We stuck to units people actually use day-to-day. If you need horse-racing furlongs (1 furlong = 201.168 m) or horse-height hands (1 hand = 4 in), you'll have to multiply by hand.
- How accurate are the conversions?
- Exact, to the precision of the internationally-defined inch (25.4 mm). The displayed numbers are rounded for readability — internally the math is full precision.
Last updated: May 17, 2026