Printable conversion charts

Length

Exact definitions are marked as exact; approximate values are rounded for quick reference.

• 1 inch = 2.54 centimetres (exact)
• 1 foot = 0.3048 metres (exact)
• 1 yard = 0.9144 metres (exact)
• 1 mile = 1.609344 kilometres (exact)
• 1 metre ≈ 3.28084 feet

Mass

These use the international avoirdupois pound.

• 1 ounce = 28.349523125 grams (exact)
• 1 pound = 0.45359237 kilograms (exact)
• 1 kilogram ≈ 2.20462 pounds
• 1 metric tonne ≈ 1.10231 US short tons

Temperature

Use formulas for values not shown here.

• 0 °C = 32 °F
• 10 °C = 50 °F
• 20 °C = 68 °F
• 25 °C = 77 °F
• 30 °C = 86 °F
• 100 °C = 212 °F

Liquid volume

US and imperial units are intentionally separated.

• 1 US gallon = 3.785411784 litres (exact)
• 1 imperial gallon = 4.54609 litres (exact)
• 1 litre ≈ 0.264172 US gallons
• 1 litre ≈ 0.219969 imperial gallons

Digital storage

Decimal and binary quantities should not be treated as synonyms.

• 1 GB = 1,000,000,000 bytes
• 1 GiB = 1,073,741,824 bytes
• 1 GiB ≈ 1.07374 GB
• 1 GB ≈ 0.931323 GiB

Printing tips

Use your browser’s print command and select portrait orientation. Turn off headers and footers for a cleaner sheet. Exact relationships are appropriate for calculations; rounded approximations are intended for quick estimates.