Unit Conversion Guide: Length, Weight, Temperature and More

Length units

Metric system: millimetre (mm), centimetre (cm), metre (m), kilometre (km). 1 m = 100 cm = 1000 mm. 1 km = 1000 m.

Imperial system: inch, foot, yard, mile. 1 foot = 12 inches, 1 yard = 3 feet, 1 mile = 1760 yards = 5280 feet.

Conversion: 1 inch = 2.54 cm, 1 foot = 30.48 cm, 1 mile = 1.609 km. 1 m = 3.281 feet, 1 km = 0.621 miles.

Practical: Height 175 cm = 5 ft 9 in. Distance 10 km = 6.2 miles. Screen size 24 inch = 61 cm.

Weight units

Metric: gram (g), kilogram (kg), ton (t). 1 kg = 1000 g, 1 ton = 1000 kg.

Imperial: ounce (oz), pound (lb), stone (st), ton. 1 lb = 16 oz, 1 stone = 14 lb, 1 ton = 2000 lb.

Conversion: 1 oz = 28.35 g, 1 lb = 0.454 kg, 1 kg = 2.205 lb, 1 stone = 6.35 kg.

Practical: 70 kg = 154 lb = 11 stone. 500 g = 17.6 oz. 1 ton = 1000 kg = 2205 lb.

Temperature units

Celsius (°C), Fahrenheit (°F), Kelvin (K). Celsius water freezing point 0°, boiling point 100°. Fahrenheit freezing 32°, boiling 212°.

Conversion: °F = °C × 9/5 + 32. °C = (°F - 32) × 5/9. K = °C + 273.15.

Practical: 37°C (body temperature) = 98.6°F. 100°C (water boiling) = 212°F. 0°C (water freezing) = 32°F. -40°C = -40°F (single equal point).

Note: Temperature conversion is not linear (has offset). 20°C ≠ 2 × 10°C conversion.

Volume and area units

Volume: 1 litre = 1000 ml. 1 gallon (US) = 3.785 litres. 1 gallon (UK) = 4.546 litres. 1 cubic metre = 1000 litres.

Area: 1 m² = 10,000 cm². 1 hectare = 10,000 m². 1 dönüm = 1000 m² (Turkey). 1 ft² = 0.093 m².

Practical: 100 m² apartment = 1076 ft². 1 hectare = 2.47 acres. 1 litre = 0.264 gallons (US).

Utilgo unit converter

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