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Imperial & Metric Unit Converter

Convert length, area, volume, fuel economy, Canada/U.S. fuel prices, EV vs gas costs, weight, temperature, and speed between metric, imperial, and U.S. units for construction, renovation, real estate, DIY, trades, mileage tracking, and cross-border work.

Browser-only converter

Convert common metric, imperial, and U.S. units.

Browser-only. No account required.

Prefill common examples, then adjust the value or unit as needed.

Length

Convert mm, cm, m, km, inches, feet, yards, miles, and feet + inches.

Input style
Feet + inches≈ 3 ft 3.37 in
Millimeters1,000 mm
Centimeters100 cm
Meters1 m
Kilometers0.001 km
Inches≈ 39.3701 in
Feet≈ 3.2808 ft
Yards≈ 1.0936 yd
Miles≈ 0.000621 mi

Values are rounded for readability. Conversion math stays in this browser session only.

Example: 5 ft 6 in = 5.5 ft = 66 in = 1.6764 m.