Use these online calculators to convert between feet per second (ft/s) and millimeters per second (mm/s). These Speed conversion calculators provide a quick and easy way to convert ft/s to mm/s, or mm/s to ft/s.
Enter your value in one of the conversion calculators below to convert ft/s to mm/s or convert mm/s to ft/s.
How to convert ft/s to mm/s: Use the conversion calculator on the left titled "Convert ft/s mm/s". Enter a value in the ft/s field and click on the "Calculate mm/s" button. Your answer will appear in the mm/s field.
How to convert mm/s to ft/s: Use the conversion calculator on the right titled "Convert mm/s to ft/s". Enter a value in the mm/s field and click on the "Calculate ft/s" button. Your answer will appear in the ft/s field.
The following is a list of definitions relating to conversions between feet per second and millimeters per second.
Feet per second is a unit of speed in both US Customary Units as well as the Imperial System. It measures the number of feet travelled in a second. The symbol for feet per second is ft/s.
Millimeters per second is a unit of speed in the Metric System. It measures the number of millimeters travelled in a second. The symbol for millimeters per second is mm/s and the International spelling is millimetres per second.
This table provides a summary of the Speed units within their respective measurement systems.
Unit | Symbol | Measurement System | Description |
---|---|---|---|
inches per second | in/s | US Customary Units (and Imperial) | |
feet per second | ft/s | US Customary Units (and Imperial) | 1 ft/s = 12 in/s |
yards per second | yd/s | US Customary Units (and Imperial) | 1 yd/s = 3 ft/s |
miles per second | mi/s | US Customary Units (and Imperial) | 1 mi/s = 1760 yd/s 1 mi/s = 5280 ft/s |
millimeters per second | mm/s | Metric System | 1000 mm/s = 1 m/s |
centimeters per second | cm/s | Metric System | 100 cm/s = 1 m/s 1 cm/s = 10 mm/s |
decimeters per second | dm/s | Metric System | 10 dm/s = 1 m/s 1 dm/s = 10 cm/s |
meters per second | m/s | Metric System | 1 m/s = 1000 mm/s 1 m/s = 100 cm/s 1 m/s = 10 dm/s |
kilometers per second | km/s | Metric System | 1 km/s = 1000 m/s |