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MPH to km/h worksheet

Grades 5–6 · CCSS 6.RP.A.3.d

Solve each problem and show your work. Round answers to 2 decimal places where needed.

1.
Problem 1.
- Value to convert: 60
- Direction: Kilometers per hour → Miles per hour
Find: In miles per hour
Answer
2.
Problem 2.
- Value to convert: 65
- Direction: Miles per hour → Kilometers per hour
Find: In kilometers per hour
Answer
3.
Problem 3.
- Value to convert: 50
- Direction: Miles per hour → Kilometers per hour
Find: In kilometers per hour
Answer
4.
Problem 4.
- Value to convert: 45
- Direction: Miles per hour → Kilometers per hour
Find: In kilometers per hour
Answer
5.
Problem 5.
- Value to convert: 55
- Direction: Kilometers per hour → Miles per hour
Find: In miles per hour
Answer
6.
Problem 6.
- Value to convert: 52
- Direction: Kilometers per hour → Miles per hour
Find: In miles per hour
Answer
7.
Problem 7.
- Value to convert: 55
- Direction: Miles per hour → Kilometers per hour
Find: In kilometers per hour
Answer
8.
Problem 8.
- Value to convert: 74
- Direction: Miles per hour → Kilometers per hour
Find: In kilometers per hour
Answer
9.
Problem 9.
- Value to convert: 90
- Direction: Kilometers per hour → Miles per hour
Find: In miles per hour
Answer
10.
Problem 10.
- Value to convert: 50
- Direction: Kilometers per hour → Miles per hour
Find: In miles per hour
Answer

Answer key: MPH to km/h worksheet

1. In miles per hour: 37.28 mph
1. The official definition goes the other way: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. So divide your kilometers per hour by 1.609344 to get miles per hour
  $\frac{60 km/h}{1.609344}$ $= 37.2822715342 mph$
3. Or multiply by 0.621371192237 instead. It gives the same answer, because 1 ÷ 1.609344 ≈ 0.621371192237
  $60 km/h \times 0.621371192237$ $= 37.2822715342 mph$
2. In kilometers per hour: 104.61 km/h
1. Start with the conversion factor: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. Multiply your miles per hour by 1.609344 to get kilometers per hour
  $65 mph \times 1.609344$ $= 104.60736 km/h$
3. In kilometers per hour: 80.47 km/h
1. Start with the conversion factor: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. Multiply your miles per hour by 1.609344 to get kilometers per hour
  $50 mph \times 1.609344$ $= 80.4672 km/h$
4. In kilometers per hour: 72.42 km/h
1. Start with the conversion factor: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. Multiply your miles per hour by 1.609344 to get kilometers per hour
  $45 mph \times 1.609344$ $= 72.42048 km/h$
5. In miles per hour: 34.18 mph
1. The official definition goes the other way: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. So divide your kilometers per hour by 1.609344 to get miles per hour
  $\frac{55 km/h}{1.609344}$ $= 34.1754155731 mph$
3. Or multiply by 0.621371192237 instead. It gives the same answer, because 1 ÷ 1.609344 ≈ 0.621371192237
  $55 km/h \times 0.621371192237$ $= 34.1754155731 mph$
6. In miles per hour: 32.31 mph
1. The official definition goes the other way: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. So divide your kilometers per hour by 1.609344 to get miles per hour
  $\frac{52 km/h}{1.609344}$ $= 32.3113019963 mph$
3. Or multiply by 0.621371192237 instead. It gives the same answer, because 1 ÷ 1.609344 ≈ 0.621371192237
  $52 km/h \times 0.621371192237$ $= 32.3113019963 mph$
7. In kilometers per hour: 88.51 km/h
1. Start with the conversion factor: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. Multiply your miles per hour by 1.609344 to get kilometers per hour
  $55 mph \times 1.609344$ $= 88.51392 km/h$
8. In kilometers per hour: 119.09 km/h
1. Start with the conversion factor: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. Multiply your miles per hour by 1.609344 to get kilometers per hour
  $74 mph \times 1.609344$ $= 119.091456 km/h$
9. In miles per hour: 55.92 mph
1. The official definition goes the other way: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. So divide your kilometers per hour by 1.609344 to get miles per hour
  $\frac{90 km/h}{1.609344}$ $= 55.9234073014 mph$
3. Or multiply by 0.621371192237 instead. It gives the same answer, because 1 ÷ 1.609344 ≈ 0.621371192237
  $90 km/h \times 0.621371192237$ $= 55.9234073014 mph$
10. In miles per hour: 31.07 mph
1. The official definition goes the other way: 1 mph is exactly 1.609344 km/h
  $1 mph$ $= 1.609344 km/h$
2. So divide your kilometers per hour by 1.609344 to get miles per hour
  $\frac{50 km/h}{1.609344}$ $= 31.0685596119 mph$
3. Or multiply by 0.621371192237 instead. It gives the same answer, because 1 ÷ 1.609344 ≈ 0.621371192237
  $50 km/h \times 0.621371192237$ $= 31.0685596119 mph$