When you need this conversion
Room and ceiling heights, building plans, boat and RV lengths, and altitudes (aircraft altitude is still given in feet almost everywhere). Floor plans from the US and UK often need metric equivalents for Europe or Asia, and the other way round.
Quick reference
- 1 ft = 0.3048 m
- 8 ft (a standard ceiling) = 2.4384 m
- 10 ft = 3.048 m
- 100 ft = 30.48 m
- 5,280 ft (a mile) = 1,609.344 m
Feet and inches
For measurements like 5 ft 11 in, convert to total inches first (71 in), then multiply by 0.0254: 1.8034 m. The feet and inches to cm calculator does this in one step.
Common mistakes
Using 0.3 as a shortcut. It’s 1.6% short. On a 100 ft run, that’s about 48 cm too little.
Converting area as length. Square feet convert with a different factor: 1 sq ft = 0.0929 m². See square feet to square meters.
For the reverse, use meters to feet.