Convert length, weight, temperature, speed, area and volume. UK and metric units — cm to inches, kg to lbs, Celsius to Fahrenheit and much more.
The United Kingdom uses a mixture of metric and imperial units — making conversions a daily necessity. Road distances are in miles, but food is sold in grams. Heights are in feet and inches, but medicine is in millilitres. Our unit converter handles all of these everyday UK conversions.
The UK officially uses the metric system but imperial measurements remain common, especially for height, distances and property sizes:
| Imperial | Metric | Notes |
|---|---|---|
| 1 inch | 2.54 cm | Used for screen sizes, height |
| 1 foot | 30.48 cm | Height, room dimensions |
| 1 yard | 0.9144 m | Fabric, sports |
| 1 mile | 1.609 km | Road distances in UK |
| 1 stone | 6.35 kg | Body weight in UK |
| 1 pound (lb) | 0.454 kg | Body weight, produce |
The UK officially uses Celsius, but many people still think in Fahrenheit — especially older generations and when discussing US weather. Key temperature reference points:
Formula: °F = (°C × 9/5) + 32 · °C = (°F − 32) × 5/9
With streaming, cloud storage and digital files now central to everyday life, understanding data sizes has become important. 1 gigabyte (GB) = 1,024 megabytes (MB). A 4K movie is typically 50–100GB; a full smartphone backup might be 5–15GB; an email is usually under 1MB.