MPH to KPH Converter
Convert miles per hour to kilometers per hour using the standard factor.
Convert speed
Presets:
Result
KPH: –
Factor used: 1 mph = 1.60934 km/h
Reverse (KPH → MPH)
Formula
We use the standard relationship between miles and kilometers:
1 mile = 1.60934 kilometersmph × 1.60934 = km/h
Example: 60 mph × 1.60934 = 96.5604 km/h → with 1 decimal → 96.6 km/h.
Why do some car dashboards show both?
Cars sold in markets that travel between mph regions (US) and km/h regions (most of the world) often display both scales so drivers can quickly check the local speed limit equivalent.
Quick reference table
- 30 mph → 48.3 km/h
- 50 mph → 80.5 km/h
- 60 mph → 96.6 km/h
- 70 mph → 112.7 km/h
FAQ
Is this the same as mph to km/h?
Yes — kph, km/h, and kmh all mean kilometers per hour.
Can I copy the result without units?
Yes. This tool shows just the number, so you can paste it into other apps or flight-planning tools.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
\[','\\]
','\
Formula (extracted text)
1 mile = 1.60934 kilometers mph × 1.60934 = km/h
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - NIST — SI units — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/owm/metric-si/si-units
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.