Unit Converter
Convert between units of length, weight, temperature & more
Quick Reference - Length
Most-Used Unit Conversions — Quick Reference
Memorise these eight conversions and you'll handle 80% of everyday situations. The tool above gives exact decimals for anything else.
Length
| From | To | Factor |
|---|---|---|
| 1 kilometre | miles | × 0.6214 |
| 1 mile | kilometres | × 1.6093 |
| 1 metre | feet | × 3.2808 |
| 1 foot | centimetres | × 30.48 |
| 1 inch | centimetres | × 2.54 |
| 1 yard | metres | × 0.9144 |
Weight
| From | To | Factor |
|---|---|---|
| 1 kilogram | pounds | × 2.2046 |
| 1 pound | kilograms | × 0.4536 |
| 1 gram | ounces | × 0.0353 |
| 1 ounce | grams | × 28.35 |
| 1 ton (metric) | pounds | × 2204.6 |
| 1 quintal | kilograms | × 100 |
Volume
| From | To | Factor |
|---|---|---|
| 1 litre | US gallons | × 0.2642 |
| 1 US gallon | litres | × 3.7854 |
| 1 UK gallon | litres | × 4.5461 |
| 1 cup (US) | millilitres | × 236.6 |
| 1 tablespoon | millilitres | × 14.79 |
| 1 barrel (oil) | litres | × 158.99 |
Area (India real estate)
| From | To | Factor |
|---|---|---|
| 1 acre | sq feet | × 43,560 |
| 1 acre | sq metres | × 4047 |
| 1 hectare | acres | × 2.4711 |
| 1 ground (TN) | sq feet | × 2400 |
| 1 cent | sq feet | × 435.6 |
| 1 bigha (UP) | sq feet | × 27,000 |
Five Unit Conversions That Trip People Up
Most unit conversions are straight multiplication. These five are not — and getting them wrong costs real money or causes real misunderstandings.
1. Temperature isn't multiplication
°F = (°C × 9/5) + 32 — you can't just multiply by a single number. 0 °C maps to 32 °F, not to 0 °F. The +32 offset means a "double temperature" doesn't translate cleanly across scales. Body temperature 37°C is 98.6°F, not "2× 37".
2. US gallon ≠ UK gallon
A US gallon is 3.785 L; a UK gallon is 4.546 L — about 20% larger. Recipes from US blogs using "1 gallon of milk" will leave you short if you use a UK measure. Same trap with quarts and pints. Always specify which gallon. Indian retail typically follows US convention but auto/petrol historically used UK gallons.
3. Indian land units vary by state
A "bigha" is ~27,000 sq ft in Uttar Pradesh, ~14,400 in Punjab, ~17,452 in West Bengal. A "ground" is 2,400 sq ft in Tamil Nadu but doesn't exist in north India. Always confirm the state context before quoting or accepting a land measurement — Indian land deals get disputed when buyers and sellers use different regional units.
4. KB vs KiB — the 2.4% rounding gap
1 KB = 1,000 bytes (decimal, SI). 1 KiB = 1,024 bytes (binary). Storage manufacturers use decimal (so a "1 TB" SSD = 10¹² bytes ≈ 931 GiB shown by Windows). The gap grows: GB vs GiB is 7.4%, TB vs TiB is 9.9%. This is why "1 TB" drives "only show 931 GB" — not a defect, just two definitions.
5. Mileage units are inverse-related
India uses km/L (higher = better). US uses MPG (miles per US gallon, higher = better). Europe uses L/100km (lower = better — an inverse measure). Converting: km/L × 2.352 = MPG, and 235.21 ÷ km/L = L/100km. A car at 15 km/L delivers 35.3 MPG or burns 6.67 L/100km. Critical when comparing Indian sedan reviews to European ones.
Real-World Conversion Scenarios
Quick how-to for the conversions people search most often.
🏠 Property listed in sq ft, you think in sq m
Divide sq ft by ~10.764. A "1200 sq ft" flat is about 111 m². For sq m → sq ft, multiply by 10.764. Most Indian property portals show both side-by-side now.
🌡️ Cooking recipe in °F, your oven is °C
350°F → 175°C, 400°F → 200°C, 425°F → 220°C. Quick rule: subtract 32, divide by 2 — close enough for baking. The tool above gives exact values.
📦 Shipping calculates in lbs, you weighed in kg
Multiply kg by 2.2 to get pounds. Shipping rates round up, so 2.1 kg = 4.63 lb = 5 lb billed. Use the tool to see if you can rebalance items to stay under a price tier.
🚗 Indian fuel efficiency in km/L vs US MPG
A 15 km/L sedan is 35.3 MPG — competitive with US compacts. A 22 km/L diesel is 51.7 MPG — better than most US hybrids. Use this to compare Indian/imported car options.
⏱️ Time zone conversion for meetings
IST is UTC+5:30 (note the half-hour). US Eastern is UTC-5 (or -4 in DST). IST→EST gap is 9.5-10.5 hours depending on season. Use our Timezone Converter for live conversions across DST.
💧 Recipe in cups, you have grams
1 cup ≈ 240 mL (volume) but the gram weight varies: 1 cup flour ≈ 125g, 1 cup sugar ≈ 200g, 1 cup butter ≈ 227g. Always check ingredient-specific tables for baking precision.
Frequently Asked Questions
How do I convert between metric and imperial units?
Select the measurement category (length, weight, etc.), choose the metric unit as the source and the imperial unit as the target, then enter your value. The converter handles the conversion factor automatically. For example, 1 kilometre equals 0.6214 miles.
How many grams are in a kilogram?
There are 1,000 grams in a kilogram. The metric system uses base-10 prefixes, so kilo always means 1,000. Similarly, 1 kilogram equals approximately 2.205 pounds in the imperial system.
How do I convert Celsius to Fahrenheit?
The formula is F = (C x 9/5) + 32. For example, 37 degrees Celsius (normal body temperature) equals 98.6 degrees Fahrenheit. This converter does the math instantly when you select the temperature category and enter your value.
What unit categories does this converter support?
This converter supports length, weight, temperature, area, volume, speed, time, and data storage units. Each category includes both metric and imperial units, covering everyday conversions like kilometres to miles, kilograms to pounds, and litres to gallons.
How many square feet are in one acre?
One acre equals 43,560 square feet, which is approximately 4,047 square metres. This is a commonly needed conversion for real estate and land measurements in India, where property sizes are often quoted in both square feet and acres.