Edit either value. Decimals and scientific notation supported.
1
ft
Decimal
Feet + inches
Whole feet; inches from 0 to less than 12. Non-negative values.
esc
Metrem
Kilometrekm
Centimetrecm
Millimetremm
Micrometreµm
Nanometrenm
Inchin
Footft
Yardyd
Milemi
Nautical milenmi
Chainch
Furlongfur
No units found. Try a name or symbol.
Feet + inches
304.8
mm
Decimal
Feet + inches
Whole feet; inches from 0 to less than 12. Non-negative values.
esc
Metrem
Kilometrekm
Centimetrecm
Millimetremm
Micrometreµm
Nanometrenm
Inchin
Footft
Yardyd
Milemi
Nautical milenmi
Chainch
Furlongfur
No units found. Try a name or symbol.
Feet + inches
CONVERSION
1 ft ≈ 304.8 mm
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAmm = ft × 304.8
FORMULA & EXAMPLES
How to convert Feet to millimetres
mm = ft × 304.8
Multiply the ft reading by 304.8.
Worked examples
6 ft ≈ 1828.8 mm
6 × 304.8 ≈ 1828.8
10.5 ft ≈ 3200.4 mm
10.5 × 304.8 ≈ 3200.4
Frequently asked questions
Does a decimal foot result show inches after the decimal point?
No. Multiply the fractional foot by 12 to obtain inches. For example, 0.5 foot is 6 inches. Use Feet + inches for a mixed-format reading.
Feet to millimetres table
Fixed reference · Foot to Millimetre
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Foot (ft)
Millimetre (mm)
0
0
0.1
30.48
0.5
152.4
1
304.8
2
609.6
5
1524
10
3048
25
7620
50
15240
100
30480
1000
304800
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.