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Common conversions
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Length
Height, distance, room, and travel measurements.
- feet to centimetresHeight and room dimensions.1 ft = 30.48 cm
- inches to centimetresScreens, furniture, and small dimensions.12 in = 30.48 cm
- metres to feetBuilding and outdoor measurements.10 m = 32.8084 ft
- miles to kilometresRoad and travel distances.5 mi = 8.04672 km
- kilometres to milesMetric road and travel distances.5 km = 3.10686 mi
- yards to metresSport, fabric, and garden measurements.10 yd = 9.144 m
Mass
Body weight, ingredients, parcels, and materials.
Temperature
Weather, cooking, and scientific temperature scales.
Volume & cooking
Liquid capacity with regional definitions made explicit.
Speed
Road, running, and technical velocity units.
Area
Land, property, and surface measurements.
Pressure
Tyres, weather, vacuum, and engineering pressure.
Digital
Decimal and binary storage plus transfer rates.
Time
Common duration relationships.