Quick answer
How do you convert common units?
Multiply by the conversion factor: 1 inch = 2.54 cm, 1 kg = 2.20462 lb, 1 mile = 1.609 km and 1 acre = 43,560 sq ft. For temperature use °F = °C × 9/5 + 32, so 37 °C is 98.6 °F. The unit converter above handles every combination both ways.
- Length: 1 in = 2.54 cm · 1 ft = 30.48 cm · 1 mi = 1.609 km
- Weight: 1 kg = 2.20462 lb · 1 lb = 453.6 g
- Area: 1 acre = 43,560 sq ft = 100 cents = 40 guntha
What are the most common unit conversions?
| From | To | Multiply by |
|---|---|---|
| Inch | Centimetre | 2.54 |
| Foot | Metre | 0.3048 |
| Mile | Kilometre | 1.609344 |
| Kilogram | Pound | 2.20462 |
| Litre | US gallon | 0.264172 |
| Acre | Square foot | 43,560 |
| Square yard (gaj) | Square foot | 9 |
How do you use the unit converter?
Pick a category: length, weight, temperature, area, volume, speed, data or time. Choose the unit you have in “From” and the unit you want in “To”, then type a number. The answer updates as you type. Use the swap button to flip the conversion, for example from cm to inches back to inches to cm.
Every unit converter result uses exact legal factors where they exist, such as 1 inch = 2.54 cm and 1 pound = 0.45359237 kg. So 5 ft 7 in (67 inches) is 170.18 cm.
How do you convert Indian land units like acre, cent, guntha and gaj?
Choose the Area category. The converter treats a gaj as one square yard (9 sq ft), a cent as one hundredth of an acre and a guntha as one fortieth of an acre.
- A 1,200 sq ft plot is about 133.3 gaj or 111.5 square metres.
- 2 acres is 80 guntha or 200 cents.
- 5 cents is 2,178 sq ft.
How do you convert weight, speed, temperature and data?
- Weight: besides kg and lb, you can use tola (10 tola is about 116.6 g), quintal (100 kg) and stone.
- Temperature: 30 °C is 86 °F. Kelvin is °C + 273.15.
- Speed: 100 km/h is about 62.1 mph.
- Volume: US and UK gallons differ. 5 litres is about 1.32 US gallons but 1.10 UK gallons.
- Data: the converter uses 1 KB = 1,024 bytes, as computers do. Drive makers count 1 TB as a trillion bytes, which is why a new 1 TB drive shows about 931 GB.
Frequently asked questions
How many centimetres are in an inch?
One inch is exactly 2.54 centimetres. To convert inches to cm, multiply by 2.54; to convert cm to inches, divide by 2.54.
How do I convert kg to pounds?
Multiply kilograms by 2.20462. For example, 70 kg is about 154.3 lb. One pound is exactly 0.45359237 kg.
How do I convert Celsius to Fahrenheit?
°F = °C × 9/5 + 32. So 37 °C is 98.6 °F, and 100 °C is 212 °F.
How many square feet are in an acre?
One acre is 43,560 square feet, 4,046.86 square metres, 100 cents or 40 guntha.
What is a gaj?
In north India, a gaj usually means a square yard (9 square feet), the common unit for plot sizes. Local usage can vary, so check with the seller.
How many square feet are in a hectare?
One hectare is 10,000 square metres, which is about 1,07,639 square feet or 2.471 acres.
How do I convert square feet to square metres?
Divide square feet by 10.764, or multiply by 0.0929. A 1,200 sq ft flat is about 111.5 square metres.