Most of the world uses metric. The US still mixes in imperial. Knowing the common conversions saves a lot of head-scratching.
Type a value, pick units
1.6093
1 mi = 1.6093 km
Quick cheat sheet
- Length: 1 in = 2.54 cm · 1 mi ≈ 1.609 km · 1 m ≈ 3.28 ft.
- Mass: 1 lb ≈ 0.454 kg · 1 kg ≈ 2.2 lb · 1 oz ≈ 28.35 g.
- Volume: 1 US gal ≈ 3.785 L · 1 cup ≈ 240 mL · 1 fl oz ≈ 29.6 mL.
Your turn
A bag of flour is 5 lb. About how many kilograms?
Pick a direction and stick to it: 'multiply or divide?' Sanity-check the answer — converting miles to km should make the number *bigger*.
Length
- 1 inch = 2.54 cm
- 1 foot = 30.48 cm
- 1 mile ≈ 1.609 km
- 1 metre ≈ 3.281 feet
Mass
- 1 ounce ≈ 28.35 grams
- 1 pound ≈ 0.454 kg
- 1 kg ≈ 2.205 pounds
Volume
- 1 US gallon ≈ 3.785 litres
- 1 UK gallon ≈ 4.546 litres
- 1 cup ≈ 240 ml (US)