🏃 Speed Conversion
Translate velocities across m/s, km/h, mph, knots, ft/s, and cm/s.
Great for physics homework, running pace analysis, and interpreting weather or aviation reports.
15 Meters per Second (m/s) equals
33.55 Miles per Hour (mph)
Other Units
Meters per Second (m/s)
15
Kilometers per Hour (km/h)
54
Knots (kt)
29.16
Feet per Second (ft/s)
49.213
Centimeters per Second (cm/s)
1,500
How to Use This Calculator
Enter the speed
Type the value you have in any supported unit.
Select the source and target units
Swap between metric, imperial, nautical, and smaller scale units.
Use the quick reference
Grab equivalent speeds for reports, calculations, or training metrics.
Formula
Base unit: meters per second (m/s)
km/h = m/s × 3.6
mph = m/s × 2.23694
knots = m/s × 1.94384
ft/s = m/s ÷ 0.3048; cm/s = m/s ÷ 0.01
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Whether you’re comparing running pace with wind speeds or converting nautical reports to highway units, this converter keeps the conversions consistent by routing through meters per second.
Additional units like feet per second and centimeters per second help when you’re working with instrumentation data or legacy specs.
Use it alongside the RMS and power calculators when translating mechanical motion into electrical power requirements.
Frequently Asked Questions
Can I convert negative values?
Yes. Negative speeds can represent direction or wind components; the calculator preserves the sign.
Why use meters per second internally?
m/s is the SI base unit for speed. Routing through it ensures precision and consistent rounding.
Does it handle Mach numbers?
Not yet. Add Mach as a unit with temperature-dependent conversion if you need it.
What about pace (minutes per kilometer)?
This tool focuses on speed. For pace, invert the speed or implement a dedicated pace converter.