About this calculator
Convert km/h, mph, metres/second and knots.
Results are rounded for display.
Formula
All values convert through metres per second.
Example
60km/h ≈ 37.28mph.
Accuracy
NUMTX shows the assumptions next to the calculation so you can replace defaults with values that match your situation. For measurements, supplier rates, fees, interest, tax or regulated work, confirm important figures with the appropriate official or professional source.