Convert feet to millimeters
1 ft = 304.8 mm — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
304.8mm
As a fraction: 1524/5
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1 ft = 304.8 mm
Show this value in all 50 length units
- Gigameters Gm 3.048e-10
- Megameters Mm 0.000 000 304 8
- Kilometers km 0.000 304 8
- Hectometers hm 0.003 048
- Decameters dam 0.030 48
- Meters m 0.3048
- Decimeters dm 3.048
- Centimeters cm 30.48
- Millimeters mm 304.8
- Micrometers µm 304 800
- Nanometers nm 304 800 000
- Picometers pm 304 800 000 000
- Femtometers fm 304 800 000 000 000
- Inches in 12
- Feet ft 1
- Yards yd 0.333 333 333 333
- Miles mi 0.000 189 393 939 394
- Nautical miles nmi 0.000 164 578 833 693
- Thous thou 12 000
- Hands hh 3
- Links li 1.515 151 515 15
- Spans span 1.333 333 333 33
- Cubits cubit 0.666 666 666 667
- Ells ell 0.266 666 666 667
- Fathoms ftm 0.166 666 666 667
- Rods rd 0.060 606 060 606 1
- Chains ch 0.015 151 515 151 5
- Furlongs fur 0.001 515 151 515 15
- Leagues lea 0.000 063 131 313 131 3
- Barleycorns barleycorn 36
- US survey feet ft (US) 0.999 998
- US survey miles mi (US) 0.000 189 393 560 606
- Ångströms Å 3 048 000 000
- Microns µ 304 800
- Bohr radiuss a₀ 5 759 885 231.77
- Planck lengths ℓₚ 1.88584103375e+34
- Astronomical units au 2.03746215487e-12
- Light-years ly 3.22173854211e-17
- Light-seconds ls 1.01670336216e-9
- Light-minutes lmin 1.69450560361e-11
- Parsecs pc 9.87789527423e-18
- Kiloparsecs kpc 9.87789527423e-21
- Megaparsecs Mpc 9.87789527423e-24
- Solar radiuss R☉ 4.38119879258e-10
- Earth radiuss R🜨 4.78417830796e-8
- Point (DTP)s pt 864
- Picas pc 72
- Scandinavian miles mil 0.000 030 48
- Versts вер 0.000 285 714 285 714
- Lis 里 0.000 609 6
Every row is Foot (ft) converted through the meter, in exact rational arithmetic.
How to convert feet to millimeters
Multiply the number of feet by 304.8 to get millimeters.
The exact factor is 304.8 — as a fraction, 1524/5.
Foot: Exactly 0.3048 m, i.e. 12 international inches.
Foot to Millimeter conversion table
| Feet (ft) | Millimeters (mm) |
|---|---|
| 1 ft | 304.8 |
| 2 ft | 609.6 |
| 3 ft | 914.4 |
| 5 ft | 1524 |
| 10 ft | 3048 |
| 20 ft | 6096 |
| 25 ft | 7620 |
| 50 ft | 15 240 |
| 100 ft | 30 480 |
| 250 ft | 76 200 |
| 500 ft | 152 400 |
| 1000 ft | 304 800 |
Millimeter to Foot conversion table
| Millimeters (mm) | Feet (ft) |
|---|---|
| 1 mm | 0.003 280 839 9 |
| 2 mm | 0.006 561 679 8 |
| 3 mm | 0.009 842 519 7 |
| 5 mm | 0.016 404 199 |
| 10 mm | 0.032 808 399 |
| 20 mm | 0.065 616 798 |
| 25 mm | 0.082 020 997 |
| 50 mm | 0.164 041 99 |
| 100 mm | 0.328 083 99 |
| 250 mm | 0.820 209 97 |
| 500 mm | 1.640 419 9 |
| 1000 mm | 3.280 839 9 |
Frequently asked
How many millimeters are in a foot?
One foot equals 304.8 millimeters (ft → mm). That figure is exact, not rounded.
How do you convert feet to millimeters?
Multiply the number of feet by 304.8 to get millimeters.
What is 1 mm in feet?
One millimeter is 0.003280839895 feet.
What is 10 ft in mm?
10 ft = 3048 mm.
What exactly is a foot?
Exactly 0.3048 m, i.e. 12 international inches.