Unit conversions come up constantly in cooking, travel, science, and engineering. Here are the most useful conversions and tricks to remember them.
Quick Reference Conversions
1 km=0.621 miles
1 mile=1.609 km
1 kg=2.205 lbs
1 lb=0.453 kg
1 liter=0.264 gallons
1 inch=2.54 cm
°C to °F=× 9/5 + 32
°F to °C=subtract 32, × 5/9
The Doubling Trick for km/miles
A quick mental trick: to convert km to miles, divide by 1.6 (or multiply by 0.6). For a rough estimate, simply halve the km value and add 25% — e.g., 100 km ≈ 62 miles.
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