Unit Converter

Convert between length, weight, temperature, area and volume units instantly.

1 Meter (m)

100

Centimeter (cm)

Quick reference: Length

FromTo1 unit =
Meter (m)Centimeter (cm)100
Centimeter (cm)Meter (m)0.01
Millimeter (mm)Meter (m)0.001
Kilometer (km)Meter (m)1,000
Inch (in)Meter (m)0.0254
Foot (ft)Meter (m)0.3048

How This Unit Converter Works

This tool converts between units across five categories: length, weight (mass), temperature, area, and volume. All conversions use standard SI-based conversion factors stored locally in your browser. No data is sent to any server — the calculation happens instantly as you type.

For length, weight, area, and volume, each unit is defined by a factor relative to a base unit (metres, grams, square metres, and litres respectively). To convert from unit A to unit B, the tool divides by A's factor and multiplies by B's factor. Temperature uses direct formulas because the relationship between Celsius, Fahrenheit, and Kelvin is not a simple ratio — it involves offsets (e.g., °F = °C × 9/5 + 32).

Common Conversion Formulas

Length: 1 inch = 2.54 cm. 1 foot = 30.48 cm. 1 mile = 1.60934 km. 1 yard = 0.9144 m. These are exact definitions established by international agreement. In India, land measurements often use feet and inches alongside metres, so quick conversion between these is essential for property documents and construction estimates.

Weight: 1 kg = 2.20462 pounds. 1 pound = 453.592 grams. 1 ounce = 28.3495 grams. 1 metric tonne = 1,000 kg. For everyday Indian use, 1 kg = approximately 2.2 lbs. Gold is measured in troy ounces internationally (1 troy oz = 31.1035 g) but in grams and tolas (1 tola = 11.6638 g) in India.

Temperature: °C to °F: multiply by 9/5 and add 32. °F to °C: subtract 32, then multiply by 5/9. °C to Kelvin: add 273.15. Water freezes at 0°C (32°F) and boils at 100°C (212°F). Normal human body temperature is approximately 37°C (98.6°F).

Area: 1 square foot = 0.0929 square metres. 1 acre = 4,046.86 square metres = 43,560 square feet. 1 hectare = 10,000 square metres = 2.471 acres. In Indian real estate, property sizes are commonly quoted in square feet (apartments), square yards (plots), or acres (agricultural land).

Volume: 1 litre = 1,000 millilitres = 0.001 cubic metres. 1 US gallon = 3.78541 litres. 1 Imperial gallon = 4.54609 litres. 1 cubic foot = 28.3168 litres. Fuel in India is sold in litres, while recipes may reference cups (1 metric cup = 250 ml) or tablespoons (1 tbsp = 15 ml).

Frequently Asked Questions

How accurate are these conversions?

All conversion factors use standard SI definitions with up to 6 decimal places of precision. For most practical purposes (construction, cooking, fitness, property), this precision is more than sufficient. Scientific applications requiring higher precision should use specialized tools.

Is my data stored anywhere?

No. All calculations run entirely in your browser using JavaScript. No values are transmitted to any server. You can use this tool offline once the page has loaded.

Why does temperature conversion work differently from other units?

Length, weight, area, and volume conversions are proportional — doubling the input doubles the output. Temperature scales have different zero points (0°C is 273.15 K, and 32°F), so conversion requires both multiplication and addition, not just a ratio.

Can I use this for Indian land measurements like bigha or gunta?

This tool covers internationally standardized units. Indian land units like bigha, gunta, and kanal vary by state (1 bigha ranges from 1,500 to 6,700 sq m depending on region), so we handle them in a dedicated tool — use the Land Area Converter, which lets you pick your state's regional factor.