Speed Calculator
Solve for speed, distance or time: enter the other two in miles, kilometers, meters, feet or nautical miles and mph, km/h, m/s or knots. Speed results include running pace per mile and per kilometer.
Speed calculator
Speed, distance and time formulas
Speed = distance ÷ time, distance = speed × time, time = distance ÷ speed. A marathon (26.2 miles) in 4 hours 30 minutes is 26.2 ÷ 4.5 = 5.82 mph, a pace of about 10:18 per mile.
| Conversion | |
|---|---|
| 1 mph | 1.609344 km/h · 0.44704 m/s · 0.868976 knots |
| 1 km/h | 0.621371 mph |
| 1 knot | 1 nautical mile per hour = 1.150779 mph |
| Pace | minutes per mile = 60 ÷ mph |
Common questions
How do I calculate speed?
Divide distance by time. 120 miles in 2 hours is 60 mph.
How do I convert mph to km/h?
Multiply by 1.609344. 60 mph = 96.6 km/h.
How long does it take to drive 100 miles at 65 mph?
100 ÷ 65 = 1.54 hours, about 1 hour 32 minutes.
How do I convert pace to speed?
Divide 60 by the minutes per mile. A 10-minute mile is 6 mph.
What is a knot in mph?
1 knot = 1.1508 mph, one nautical mile per hour.
Sources
Related
General information, not financial, tax or legal advice. Check important numbers with the official source before acting on them.