20 mph to km/h: 20 mph = 32.19 kph

20 mph is 32.19 km/h (32.1869 kilometers per hour, rounded to four decimals). To get it, multiply 20 by 1.609344.

At a constant 20 mph, 100 miles takes 5 h. Real trips take longer because of stops, traffic and speed changes.

20 mph equals 8.94 m/s. Every second you travel about 8.9 meters (29 feet).

How to convert 20 mph to km/h

One mile per hour equals 1.609344 kilometers per hour. Multiply the speed in mph by this factor:

km/h = mph × 1.609344
20 × 1.609344 = 32.19 km/h

Quick estimate in your head: multiply by 1.6. 20 × 1.6 ≈ 32 km/h. Or add 60%: 20 + 12 = 32.

20 mph — 32 km/h — is cycling or slow city-traffic speed. For comparison, 20 mph is:

about the same as a typical school-zone limit in the UK and US — 20 mph
7% faster than the 30 km/h zones used in many European city centres (30 km/h (19 mph))
20% slower than a typical US residential speed limit (25 mph)

As a wind speed, 20 mph is Force 5 — fresh breeze on the Beaufort scale .

At 20 mph you cover about 0.33 miles every minute and 8.9 meters every second.

Need the full chart? See the mph to km/h conversion table.

Frequently asked questions

20 mph is 32.19 km/h (32.1869 kilometers per hour, rounded to four decimals). To get it, multiply 20 by 1.609344.

20 mph (32 km/h) is cycling or slow city-traffic speed. It is about the same as a typical school-zone limit in the UK and US — 20 mph.

At a constant 20 mph, 100 miles takes 5 h. Real trips take longer because of stops, traffic and speed changes.

20 mph equals 8.94 m/s. Every second you travel about 8.9 meters (29 feet).