🏁 Speed Converter
Convert between MPH and KPH for automotive applications
🏁 MPH to KPH
🏁 KPH to MPH
Common Speed Limits
US Speed Limits
School Zone15-25 MPH
Residential25-35 MPH
City Streets35-45 MPH
Highway55-65 MPH
Interstate65-80 MPH
International Limits
Germany AutobahnNo limit*
UK Motorway70 MPH (113 KPH)
Canada Highway100 KPH (62 MPH)
Australia Highway110 KPH (68 MPH)
Racing Speeds
NASCAR200+ MPH
Formula 1230+ MPH
IndyCar240+ MPH
Top Fuel Dragster330+ MPH
Quick Reference Table
Common Converterss
10 MPH16.1 KPH
25 MPH40.2 KPH
35 MPH56.3 KPH
45 MPH72.4 KPH
55 MPH88.5 KPH
65 MPH104.6 KPH
75 MPH120.7 KPH
85 MPH136.8 KPH
Metric Converterss
50 KPH31.1 MPH
60 KPH37.3 MPH
80 KPH49.7 MPH
100 KPH62.1 MPH
120 KPH74.6 MPH
140 KPH87.0 MPH
160 KPH99.4 MPH
200 KPH124.3 MPH
Converters Formulas
MPH to KPH:
KPH = MPH × 1.60934
KPH to MPH:
MPH = KPH ÷ 1.60934
Note: The Converters factor 1.60934 comes from the fact that 1 mile = 1.60934 kilometers. This is an exact Converters based on the international definition of the mile and kilometer.
How to Use
1. Enter speed in MPH or KPH
2. View instant conversion to other unit
3. Reference common speed limits
4. Use for automotive calculations
Features
✓ MPH to KPH conversion
✓ Bidirectional speed conversion
✓ Common speed references
✓ Automotive applications