MPH to KM/H Conversion
55 mph to km/h
55 mph is 88.51 km/h, or about 89 km/h when rounded to the nearest whole number.
How to Convert 55 mph to km/h
One mile is defined as exactly 1.609344 kilometers, so to convert miles per hour to kilometers per hour you multiply by 1.609344.
55 mph = 88.51 km/h
55 mph in Other Speed Units
Need a different unit? Use the Speed Converter for m/s, ft/s, knots and Mach, or the Feet Per Second Calculator.
How Fast Is 55 mph?
55 mph is the US national maximum speed limit from 1974 to 1995, and still a common highway limit in the Northeast. At this speed you cover 1 mile in 1 minute 5 seconds and 1 kilometer in 41 seconds. On our Common Speed Reference scale it sits between Usain Bolt's world-record sprint (45 km/h) and a US highway speed limit (112 km/h).
Convert Any Speed From MPH to KM/H
Enter a value in either field to convert automatically
MPH to KM/H Table: 45 to 65 mph
Nearby values in 1 mph steps. Linked rows open a dedicated conversion page.
| MPH | KM/H |
|---|---|
| 45 mph | 72.42 km/h |
| 46 mph | 74.03 km/h |
| 47 mph | 75.64 km/h |
| 48 mph | 77.25 km/h |
| 49 mph | 78.86 km/h |
| 50 mph | 80.47 km/h |
| 51 mph | 82.08 km/h |
| 52 mph | 83.69 km/h |
| 53 mph | 85.30 km/h |
| 54 mph | 86.90 km/h |
| 55 mph | 88.51 km/h |
| 56 mph | 90.12 km/h |
| 57 mph | 91.73 km/h |
| 58 mph | 93.34 km/h |
| 59 mph | 94.95 km/h |
| 60 mph | 96.56 km/h |
| 61 mph | 98.17 km/h |
| 62 mph | 99.78 km/h |
| 63 mph | 101.39 km/h |
| 64 mph | 103.00 km/h |
| 65 mph | 104.61 km/h |
Frequently Asked Questions
Common questions about 55 mph in km/h
What is 55 mph in km/h?
55 miles per hour equals 88.51 kilometers per hour, or about 89 km/h.
How do you convert 55 mph to km/h?
Multiply the speed in miles per hour by 1.609344: 55 × 1.609344 = 88.51 km/h. The factor comes from the definition 1 mile = 1.609344 kilometers.
How long does it take to travel 1 mile at 55 mph?
At 55 mph it takes 1 minute 5 seconds to travel 1 mile. That is 55 mph ÷ 60, or about 0.92 miles per minute.
MPH to KM/H Conversions by Value
Each page gives the exact answer, the formula, a worked calculation, the same speed in other units and a table of nearby values.
- 5 mph8.05 km/h
- 10 mph16.09 km/h
- 15 mph24.14 km/h
- 20 mph32.19 km/h
- 25 mph40.23 km/h
- 30 mph48.28 km/h
- 35 mph56.33 km/h
- 40 mph64.37 km/h
- 45 mph72.42 km/h
- 50 mph80.47 km/h
- 55 mph88.51 km/h
- 60 mph96.56 km/h
- 65 mph104.61 km/h
- 70 mph112.65 km/h
- 75 mph120.70 km/h
- 80 mph128.75 km/h
- 85 mph136.79 km/h
- 90 mph144.84 km/h
- 95 mph152.89 km/h
- 100 mph160.93 km/h
- 110 mph177.03 km/h
- 120 mph193.12 km/h
- 130 mph209.21 km/h
- 140 mph225.31 km/h
- 150 mph241.40 km/h
- 160 mph257.50 km/h
- 170 mph273.59 km/h
- 180 mph289.68 km/h
- 200 mph321.87 km/h
- 220 mph354.06 km/h
- 250 mph402.34 km/h
- 300 mph482.80 km/h
Looking for the other direction? See the KM/H to MPH converter and value pages.
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