Convert Millimetre per second to Foot per second
1 millimetre per second = 0.00328084 foot per second (ft/s). For example, 10 millimetre per second = 0.0328084 foot per second and 100 millimetre per second = 0.328084 foot per second. Type any value below to convert millimetre per second to foot per second both ways — it runs entirely in your browser.
Quick answer: Millimetre per second to Foot per second
1 Millimetre per second = 0.00328084Foot per second (mm/s → ft/s). To convert millimetre per second to foot per second, multiply by 0.00328084. To convert foot per second to millimetre per second, multiply by 304.8. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common millimetre per second-to-foot per second questions.
How to convert Millimetre per second to Foot per second
To convert millimetre per second to foot per second, multiply the number of millimetre per second by the conversion factor 0.00328084, because 1 mm/s = 0.00328084ft/s. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 ft/s = 304.8mm/s, so you divide by 0.00328084 (or multiply by 304.8) to turn foot per second back into millimetre per second.
ft/s = mm/s × 0.00328084 ·
mm/s = ft/s × 304.8
- Write down the value you want to convert, in millimetre per second.
- Multiply it by 0.00328084.
- The result is the same area/length/quantity expressed in foot per second.
Millimetre per second to Foot per second — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5millimetre per second is 0.0164042foot per second because 5 mm/s × 0.00328084 = 0.0164042 ft/s.
| Millimetre per second | Calculation | Foot per second |
|---|---|---|
| 1mm/s | 1 mm/s × 0.00328084 = 0.00328084 ft/s | 0.00328084ft/s |
| 2mm/s | 2 mm/s × 0.00328084 = 0.00656168 ft/s | 0.00656168ft/s |
| 3mm/s | 3 mm/s × 0.00328084 = 0.00984252 ft/s | 0.00984252ft/s |
| 5mm/s | 5 mm/s × 0.00328084 = 0.0164042 ft/s | 0.0164042ft/s |
| 7mm/s | 7 mm/s × 0.00328084 = 0.02296588 ft/s | 0.02296588ft/s |
| 10mm/s | 10 mm/s × 0.00328084 = 0.0328084 ft/s | 0.0328084ft/s |
| 12mm/s | 12 mm/s × 0.00328084 = 0.03937008 ft/s | 0.03937008ft/s |
| 15mm/s | 15 mm/s × 0.00328084 = 0.0492126 ft/s | 0.0492126ft/s |
| 20mm/s | 20 mm/s × 0.00328084 = 0.0656168 ft/s | 0.0656168ft/s |
| 25mm/s | 25 mm/s × 0.00328084 = 0.082021 ft/s | 0.082021ft/s |
| 50mm/s | 50 mm/s × 0.00328084 = 0.164042 ft/s | 0.164042ft/s |
| 100mm/s | 100 mm/s × 0.00328084 = 0.328084 ft/s | 0.328084ft/s |
Common Millimetre per second to Foot per second conversions
These are the millimetre per second-to-foot per second values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 millimetre per second = 0.00328084 foot per second
- 2 millimetre per second = 0.00656168 foot per second
- 2.5 millimetre per second = 0.0082021 foot per second
- 3 millimetre per second = 0.00984252 foot per second
- 4 millimetre per second = 0.01312336 foot per second
- 5 millimetre per second = 0.0164042 foot per second
- 6 millimetre per second = 0.01968504 foot per second
- 7 millimetre per second = 0.02296588 foot per second
- 8 millimetre per second = 0.02624672 foot per second
- 9 millimetre per second = 0.02952756 foot per second
- 10 millimetre per second = 0.0328084 foot per second
- 12 millimetre per second = 0.03937008 foot per second
- 15 millimetre per second = 0.0492126 foot per second
- 20 millimetre per second = 0.0656168 foot per second
- 25 millimetre per second = 0.082021 foot per second
- 30 millimetre per second = 0.0984252 foot per second
- 50 millimetre per second = 0.164042 foot per second
- 75 millimetre per second = 0.246063 foot per second
- 100 millimetre per second = 0.328084 foot per second
- 200 millimetre per second = 0.656168 foot per second
- 500 millimetre per second = 1.64042 foot per second
- 1000 millimetre per second = 3.28084 foot per second
Millimetre per second to Foot per second conversion chart (both directions)
The chart below converts millimetre per second to foot per second and foot per second to millimetre per second side by side, so it works whichever way you need. 1 millimetre per second = 0.00328084foot per second, and 1 foot per second = 304.8millimetre per second.
| Millimetre per second → Foot per second | Foot per second → Millimetre per second |
|---|---|
| 0.25mm/s = 0.00082021ft/s | 0.25ft/s = 76.2mm/s |
| 0.5mm/s = 0.00164042ft/s | 0.5ft/s = 152.4mm/s |
| 1mm/s = 0.00328084ft/s | 1ft/s = 304.8mm/s |
| 2mm/s = 0.00656168ft/s | 2ft/s = 609.6mm/s |
| 3mm/s = 0.00984252ft/s | 3ft/s = 914.4mm/s |
| 4mm/s = 0.01312336ft/s | 4ft/s = 1,219.2mm/s |
| 5mm/s = 0.0164042ft/s | 5ft/s = 1,524mm/s |
| 6mm/s = 0.01968504ft/s | 6ft/s = 1,828.8mm/s |
| 7mm/s = 0.02296588ft/s | 7ft/s = 2,133.6mm/s |
| 8mm/s = 0.02624672ft/s | 8ft/s = 2,438.4mm/s |
| 9mm/s = 0.02952756ft/s | 9ft/s = 2,743.2mm/s |
| 10mm/s = 0.0328084ft/s | 10ft/s = 3,048mm/s |
| 12mm/s = 0.03937008ft/s | 12ft/s = 3,657.6mm/s |
| 15mm/s = 0.0492126ft/s | 15ft/s = 4,572mm/s |
| 20mm/s = 0.0656168ft/s | 20ft/s = 6,096mm/s |
| 25mm/s = 0.082021ft/s | 25ft/s = 7,620mm/s |
| 30mm/s = 0.0984252ft/s | 30ft/s = 9,144mm/s |
| 40mm/s = 0.1312336ft/s | 40ft/s = 12,192mm/s |
| 50mm/s = 0.164042ft/s | 50ft/s = 15,240mm/s |
| 75mm/s = 0.246063ft/s | 75ft/s = 22,860mm/s |
| 100mm/s = 0.328084ft/s | 100ft/s = 30,480mm/s |
| 150mm/s = 0.492126ft/s | 150ft/s = 45,720mm/s |
| 200mm/s = 0.656168ft/s | 200ft/s = 60,960mm/s |
| 250mm/s = 0.82021ft/s | 250ft/s = 76,200mm/s |
| 500mm/s = 1.64042ft/s | 500ft/s = 152,400mm/s |
| 1000mm/s = 3.28084ft/s | 1000ft/s = 304,800mm/s |
Millimetre per second vs Foot per second: which is bigger?
A foot per second is the larger unit: one foot per second equals 304.8 millimetre per seconds. Put another way, you need 304.8 millimetre per seconds to make a single foot per second.
What is a Millimetre per second? History, origin and usage
The millimetre per second is a fine-resolution metric speed unit, useful where motion is too slow even for centimetres per second. It is built from the millimetre, one-thousandth of a metre.
Millimetres per second is used for very slow, precise motion: machine-tool feed rates, the crawl of fluids and gels, vibration-velocity limits in condition monitoring, and creep in materials and geology. It keeps slow speeds readable as whole numbers.
One millimetre per second equals exactly 0.001 metres per second. Industrial vibration standards often set machine-health alarm thresholds in millimetres per second of vibration velocity.
What is a Foot per second? History, origin and usage
The foot per second measures speed in imperial feet covered each second and is the speed companion to the foot-pound and other US customary units. It is a natural choice in systems where distances are already expressed in feet.
Feet per second is widely used in US ballistics (the muzzle velocity of bullets and arrows), in aerodynamics, and in some engineering and physics work. It also appears in fluid-flow and conveyor-speed specifications in the United States.
One foot per second is exactly 0.3048 metres per second, since a foot is defined as exactly 0.3048 metres. Rifle bullets typically leave the barrel at well over a thousand feet per second.
Convert 1 Millimetre per second to other units
It can help to see a millimetre per second next to the other units it is commonly compared with. One millimetre per second (mm/s) is equal to:
| 1 Millimetre per second equals | Unit |
|---|---|
| 0.001m/s | Metre per second |
| 0.0036km/h | Kilometre per hour |
| 0.002236936mph | Mile per hour |
| 0.00328084ft/s | Foot per second |
| 0.1cm/s | Centimetre per second |
| 0.001943844kn | Knot |
Convert 1 Foot per second to other units
One foot per second (ft/s) is equal to:
| 1 Foot per second equals | Unit |
|---|---|
| 0.3048m/s | Metre per second |
| 1.09728km/h | Kilometre per hour |
| 0.6818182mph | Mile per hour |
| 30.48cm/s | Centimetre per second |
| 304.8mm/s | Millimetre per second |
| 0.5924838kn | Knot |
Tips for converting Millimetre per second to Foot per second
- To go from millimetre per second to foot per second, multiply by 0.00328084; to go back, divide by 0.00328084 (or multiply by 304.8).
- For a quick mental estimate, remember that 1 millimetre per second ≈ 0.00328084 foot per second, so 10 millimetre per second ≈ 0.0328084 foot per second.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Millimetre per second to Foot per second converter
Type a number into the Millimetre per second field and the equivalent in Foot per second appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Foot per second field to convert the other way (foot per second to millimetre per second). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 mm/s = 0.00328084ft/s), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for millimetre per second-to-foot per second conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
All speed factors are exact: 1 m/s = 3.6 km/h, 1 mph = 1.609344 km/h, 1 knot = 1.852 km/h, 1 ft/s = 0.3048 m/s. So the live tool and every number on this page always agree.
Frequently asked questions
- How many foot per second are in 1 millimetre per second?
- 1 millimetre per second = 0.00328084 foot per second (ft/s). To convert any number of millimetre per second to foot per second, multiply by 0.00328084.
- How do I convert millimetre per second to foot per second?
- Multiply the number of millimetre per second by 0.00328084. For example, 10 millimetre per second = 10 × 0.00328084 = 0.0328084 foot per second, and 25 millimetre per second = 0.082021 foot per second.
- How many millimetre per second are in 1 foot per second?
- 1 foot per second = 304.8 millimetre per second. So to convert foot per second back to millimetre per second, multiply by 304.8.
- What is the formula to convert millimetre per second to foot per second?
- foot per second = millimetre per second × 0.00328084. The reverse formula is millimetre per second = foot per second × 304.8.
- How much is 100 millimetre per second in foot per second?
- 100 millimetre per second = 0.328084 foot per second. (And 1000 millimetre per second = 3.28084 foot per second.)
- Which is bigger, a millimetre per second or a foot per second?
- A foot per second is larger: 1 foot per second = 304.8 millimetre per second.
- Is this millimetre per second to foot per second converter accurate?
- Yes — every value is computed from the exact 0.00328084 ft/s per mm/s factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert foot per second to millimetre per second too?
- Yes. The converter works both ways — enter a value in either field. 1 foot per second = 304.8 millimetre per second.