Unit conversion worksheets

About this worksheet

Changing one unit into another: 4 km into metres, 3,000 g into kilograms, 2 h 15 min into minutes. The facts to know are few: 1 km = 1,000 m, 1 m = 100 cm, 1 cm = 10 mm, 1 kg = 1,000 g, 1 L = 1,000 mL, 1 hour = 60 minutes, 1 minute = 60 seconds.

Tips for parents and teachers

• Bigger unit to smaller unit: multiply. Smaller unit to bigger unit: divide.
• Time is the odd one out. It works in sixties, not in tens.
• Keep a small table of the facts on top of the sheet for the first few days.

Ready settings by class

• Unit conversion, all mixed Class 4

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