Convert length units instantly — meters, feet, inches, centimeters, kilometers, miles, and more.
| Unit | Name | Value |
|---|---|---|
| m | Meter | 0.3048 |
| km | Kilometer | 0.0003048 |
| cm | Centimeter | 30.48 |
| mm | Millimeter | 304.8 |
| in | Inch | 12 |
| yd | Yard | 0.33333333 |
| mi | Mile | 0.00018939394 |
| nmi | Nautical Mile | 0.00016457883 |
Multiply the number of Foots by 304.8 to get Millimeters. Formula: mm = ft × 304.8. Example: 10 ft × 304.8 = 3048 mm. To reverse, divide Millimeters by 304.8 to get Foots.
| Foot (ft) | Millimeter (mm) |
|---|---|
| 0.001 ft | 0.3048 mm |
| 0.01 ft | 3.048 mm |
| 0.1 ft | 30.48 mm |
| 0.5 ft | 152.4 mm |
| 1 ft | 304.8 mm |
| 2 ft | 609.6 mm |
| 5 ft | 1524 mm |
| 10 ft | 3048 mm |
| 20 ft | 6096 mm |
| 50 ft | 15240 mm |
| 100 ft | 30480 mm |
| 250 ft | 76200 mm |
| 500 ft | 152400 mm |
| 1000 ft | 304800 mm |
| 10000 ft | 3048000 mm |
To convert Foot to Millimeter, multiply by 304.8. Example: 10 ft = 3048 mm
To convert Millimeter back to Foot, divide by 304.8 (multiply by 0.00328084). Use the swap button above.
Start with 100 Foots = 30480 mm as your reference point. Scale up or down from there.
US engineers exporting products to metric markets convert foot-based dimensions to millimetres for technical drawings, manufacturing specifications, and CE compliance documentation required in EU and Asian markets.
Fine furniture and cabinetry makers in the US measure overall dimensions in feet but work to millimetre tolerances for joinery — high-quality dovetail joints, mortise-and-tenon fits, and drawer slides all require millimetre precision.
US construction specifications express room dimensions in feet while detailing tolerance requirements in millimetres for precision elements — door frame clearances, window reveals, and tile joint widths are all specified in mm.
US-based medical device manufacturers design products dimensioned in feet/inches for the US market but must convert to millimetres for FDA drawings, ISO 13485 quality systems, and EU MDR regulatory submissions.
US car manufacturers specify vehicle body dimensions in feet and inches for sales materials while engineering drawings use millimetres for all component specifications — every dimension crosses this conversion in automotive design.
Metal sheet and plate is sold in US standard sizes by the foot but cut and formed to millimetre tolerances on CNC machinery — fabricators convert between the two for every cutting plan and bend specification.
The Foot is a unit of Length measurement (symbol: ft). 1 ft = 304.8 mm. Used in scientific and practical Length measurement applications.
The Millimeter is a unit of Length measurement (symbol: mm). It is part of an internationally recognised measurement system used alongside the Foot.
The foot is one of humanity's oldest measurement units, used by ancient Egyptians, Greeks, and Romans — each with slightly different values. The English statute foot was standardised at 12 inches in 1305 under King Edward I. Its definition was refined multiple times over centuries, finally fixed as exactly 0.3048 metres under the International Yard and Pound Agreement of 1959, signed by the US, UK, Canada, Australia, and South Africa. Today the foot remains official in the US, UK aviation, and international aviation worldwide.
The millimetre was introduced alongside the metre in 1795 as part of the French metric system — one-thousandth of a metre. Its practical value emerged in precision engineering during the Industrial Revolution, when manufacturing tolerances first needed sub-centimetre precision. By the 20th century, ISO engineering drawing standards adopted millimetres as the primary unit for all technical drawings worldwide. Today millimetres are the universal language of engineering — from watch mechanisms to aircraft fuselages.
Common use: Foot to Millimeter conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.