How many feet are in 1 millimeter?

1 mm equals 0.003280839895 ft. This is an exact conversion factor defined by NIST.

How do I convert millimeters to feet?

Multiply the value in mm by the conversion factor. For example, 10 mm = 0.03280839895 ft. Use our calculator above for instant results.

Is the millimeters to feet conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert millimeters to feet offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between millimeters and feet?

Millimeters (mm) and Feet (ft) are both units of length but belong to different measurement systems. 1 mm = 0.003280839895 ft. Use the converter above to switch between them instantly.

Millimeters to Feet (mm → ft) — Free Online Converter

mm → ft Reference Table

mm	ft
0.001 mm	0.000003280839895 ft
0.002 mm	0.00000656167979 ft
0.003 mm	0.000009842519685 ft
0.004 mm	0.00001312335958 ft
0.005 mm	0.00001640419948 ft
0.006 mm	0.00001968503937 ft
0.007 mm	0.00002296587927 ft
0.008 mm	0.00002624671916 ft
0.009 mm	0.00002952755906 ft
0.01 mm	0.00003280839895 ft
0.02 mm	0.0000656167979 ft
0.03 mm	0.00009842519685 ft
0.04 mm	0.0001312335958 ft
0.05 mm	0.0001640419948 ft
0.06 mm	0.0001968503937 ft
0.07 mm	0.0002296587927 ft
0.08 mm	0.0002624671916 ft
0.09 mm	0.0002952755906 ft
0.1 mm	0.0003280839895 ft
0.2 mm	0.000656167979 ft
0.3 mm	0.0009842519685 ft
0.4 mm	0.001312335958 ft
0.5 mm	0.001640419948 ft
0.6 mm	0.001968503937 ft
0.7 mm	0.002296587927 ft
0.8 mm	0.002624671916 ft
0.9 mm	0.002952755906 ft
1 mm	0.003280839895 ft
1.5 mm	0.004921259843 ft
2 mm	0.00656167979 ft
2.5 mm	0.008202099738 ft
3 mm	0.009842519685 ft
3.5 mm	0.01148293963 ft
4 mm	0.01312335958 ft
4.5 mm	0.01476377953 ft
5 mm	0.01640419948 ft
5.5 mm	0.01804461942 ft
6 mm	0.01968503937 ft
6.5 mm	0.02132545932 ft
7 mm	0.02296587927 ft
7.5 mm	0.02460629921 ft
8 mm	0.02624671916 ft
8.5 mm	0.02788713911 ft
9 mm	0.02952755906 ft
9.5 mm	0.031167979 ft
10 mm	0.03280839895 ft
11 mm	0.03608923885 ft
12 mm	0.03937007874 ft
13 mm	0.04265091864 ft
14 mm	0.04593175853 ft
15 mm	0.04921259843 ft
16 mm	0.05249343832 ft
17 mm	0.05577427822 ft
18 mm	0.05905511811 ft
19 mm	0.06233595801 ft
20 mm	0.0656167979 ft
25 mm	0.08202099738 ft
30 mm	0.09842519685 ft
35 mm	0.1148293963 ft
40 mm	0.1312335958 ft
45 mm	0.1476377953 ft
50 mm	0.1640419948 ft
55 mm	0.1804461942 ft
60 mm	0.1968503937 ft
65 mm	0.2132545932 ft
70 mm	0.2296587927 ft
75 mm	0.2460629921 ft
80 mm	0.2624671916 ft
85 mm	0.2788713911 ft
90 mm	0.2952755906 ft
95 mm	0.31167979 ft
100 mm	0.3280839895 ft
120 mm	0.3937007874 ft
125 mm	0.4101049869 ft
130 mm	0.4265091864 ft
140 mm	0.4593175853 ft
150 mm	0.4921259843 ft
160 mm	0.5249343832 ft
175 mm	0.5741469816 ft
180 mm	0.5905511811 ft
200 mm	0.656167979 ft
225 mm	0.7381889764 ft
250 mm	0.8202099738 ft
275 mm	0.9022309711 ft
300 mm	0.9842519685 ft
350 mm	1.148293963 ft
400 mm	1.312335958 ft
450 mm	1.476377953 ft
500 mm	1.640419948 ft
600 mm	1.968503937 ft
700 mm	2.296587927 ft
750 mm	2.460629921 ft
800 mm	2.624671916 ft
900 mm	2.952755906 ft
1000 mm	3.280839895 ft
1200 mm	3.937007874 ft
1250 mm	4.101049869 ft
1500 mm	4.921259843 ft
1750 mm	5.741469816 ft
2000 mm	6.56167979 ft
2500 mm	8.202099738 ft
3000 mm	9.842519685 ft
4000 mm	13.12335958 ft
4500 mm	14.76377953 ft
5000 mm	16.40419948 ft
6000 mm	19.68503937 ft
7000 mm	22.96587927 ft
7500 mm	24.60629921 ft
8000 mm	26.24671916 ft
9000 mm	29.52755906 ft
10000 mm	32.80839895 ft
15000 mm	49.21259843 ft
20000 mm	65.6167979 ft
25000 mm	82.02099738 ft
50000 mm	164.0419948 ft
75000 mm	246.0629921 ft
100000 mm	328.0839895 ft

Values based on NIST SP 811 conversion factors

Why Convert Millimeters to Feet?

Converting between millimeters (mm) and feet (ft) is one of the most common length conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert mm to ft saves time and prevents errors.

Length conversions between mm and ft are fundamental in construction, manufacturing, and international trade. Architects rely on precise conversions when adapting building plans between metric and imperial standards — a 1% error on a 30-meter wall translates to 30 cm of misalignment. Travelers frequently convert between kilometers and miles for road trips, while online shoppers need length conversions to verify clothing sizes, furniture dimensions, and screen diagonals across international retailers. In athletics, track distances (100m, 1500m, marathon) must be precisely converted for record comparisons across different measurement traditions.

How to Convert Millimeters to Feet

To convert millimeters to feet, use the following formula:

ft = mm × 0.003280839895

Example: 1 mm = 0.003280839895 ft

For example, 5 mm = 0.01640419948 ft, 10 mm = 0.03280839895 ft, and 100 mm = 0.3280839895 ft. For larger values, 1000 mm = 3.280839895 ft. Conversely, 1 ft = 304.8 mm. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

Confusing similar units: confusing nautical miles with regular miles, or yards with meters.
Decimal errors: moving the decimal point the wrong way (e.g., 100 cm = 1 m, not 10 m).
Approximation: assuming an inch is exactly 2.5 cm (it's 2.54 cm).

Pro Tips

Use 'approx' for mental math: 1 km is roughly 0.6 miles (or 2/3 for quick estimates).
Visualize: A meter is about a guitar length; an inch is a thumb width.
Ruler check: Most rulers show cm and inches together—great for quick checks.

What is a Millimeter?

The millimeter (mm) is a metric unit of length equal to one-thousandth of a meter (0.001 m). It is a standard unit in the International System of Units (SI).

Millimeters are used for precision engineering, manufacturing dimensions, rainfall measurement, and paper sizes (ISO 216). It represents small scale accuracy.

What is a Foot?

The foot (ft) is a unit of length in the Imperial and US customary systems. It is historically based on the human foot size. Since the International Yard and Pound Agreement of 1959, one foot has been exactly defined as 0.3048 meters.

Feet are primarily used in the United States, United Kingdom, and Canada. Common applications include measuring height, building dimensions, real estate, and aviation altitude.

Millimeters → Feet

Millimeters to Feet Formula