Units & Measurement

Unit conversion questions test whether you can move between hours and minutes, kilometres and metres, kilograms and grams without slipping a zero.

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Tap an answer. You'll see if it's right, and why. Easy ones come first.

1. Q1Easy

   8 hours = ? minutes

   1. A540
   2. B480
   3. C800
   4. D240
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   Answer: B. 480

   💡 1 hour = 60 minutes, so 8 × 60 = 480.

2. Q2Easy

   1.4 L = ? mL

   1. A140
   2. B1,400
   3. C14,000
   4. D1,390
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   Answer: B. 1,400

   💡 1 L = 1,000 mL, so 1.4 × 1,000 = 1,400.

3. Q3Easy

   2 hours = ? minutes

   1. A144
   2. B180
   3. C120
   4. D200
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   Answer: C. 120

   💡 1 hour = 60 minutes, so 2 × 60 = 120.

4. Q4Easy

   1.8 km = ? m

   1. A180
   2. B2,160
   3. C1,800
   4. D18,000
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   Answer: C. 1,800

   💡 1 km = 1,000 m, so 1.8 × 1,000 = 1,800.

5. Q5Medium

   3 km 511 m = ? m

   1. A3,511
   2. B4,511
   3. C514
   4. D811
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   Answer: A. 3,511

   💡 3 × 1,000 + 511 = 3,511 m.

6. Q6Medium

   2 h 50 min = ? min

   1. A170
   2. B204
   3. C230
   4. D250
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   Answer: A. 170

   💡 2 × 60 + 50 = 170 minutes.

7. Q7Medium

   3 km 58 m = ? m

   1. A3,058
   2. B61
   3. C4,058
   4. D358
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   Answer: A. 3,058

   💡 3 × 1,000 + 58 = 3,058 m.

8. Q8Medium

   3 h 40 min = ? min

   1. A220
   2. B280
   3. C180
   4. D210
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   Answer: A. 220

   💡 3 × 60 + 40 = 220 minutes.