Field Calculators

Unit converter

in
12
ft
1
yd
0.33333
mi
0.00018939
mm
304.8
cm
30.48
m
0.3048
km
0.0003048

All conversions are exact by definition: 1 ft = 0.3048 m, 1 lb = 0.45359237 kg, 1 US gal = 231 in³, 1 acre = 43,560 SF, 1 roofing square = 100 SF.

Type a number, pick its unit, and see it in every other unit. Lengths also take feet and inches like 12' 6-1/2".