Metric Conversions worksheet - Free Printable

Let’s solve each part step by step.

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Part 1: Convert the following metric units of length.

We use the chart:
- km → m: ×1000
- m → cm: ×100
- cm → mm: ×10
And backwards:
- mm → cm: ÷10
- cm → m: ÷100
- m → km: ÷1000

Now let’s do each problem:

1) 5 km = ___ m
→ 5 × 1000 = 5000 m

2) 600 cm = ___ m
→ 600 ÷ 100 = 6 m

3) 8 cm = ___ mm
→ 8 × 10 = 80 mm

4) ___ km = 4000 m
→ 4000 ÷ 1000 = 4 km

5) ___ m = 900 cm
→ 900 ÷ 100 = 9 m

6) 120 mm = ___ cm
→ 120 ÷ 10 = 12 cm

7) 7 km = ___ m
→ 7 × 1000 = 7000 m

8) 14 cm = ___ mm
→ 14 × 10 = 140 mm

9) 12 m = ___ cm
→ 12 × 100 = 1200 cm

10) ___ km = 13,000 m
→ 13,000 ÷ 1000 = 13 km

11) ___ cm = 130 mm
→ 130 ÷ 10 = 13 cm

12) 1400 cm = ___ m
→ 1400 ÷ 100 = 14 m

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Part 2: Which is the most? Circle the largest amount in each box.

We need to convert all values in each box to the same unit (let’s use meters) to compare.

Box 1:
- 100 m → 100 m
- 1 km → 1000 m
- 1000 cm → 1000 ÷ 100 = 10 m
→ Largest: 1 km

Box 2:
- 3 km → 3000 m
- 2850 m → 2850 m
- 5000 cm → 5000 ÷ 100 = 50 m
→ Largest: 3 km

Box 3:
- 380 cm → 380 ÷ 100 = 3.8 m
- 4000 mm → 4000 ÷ 1000 = 4 m (since 1000 mm = 1 m)
Wait — better to go step by step:
Actually, 4000 mm → divide by 10 to get cm → 400 cm → then divide by 100 to get m → 4 m
Or directly: 4000 mm ÷ 1000 = 4 m
- 3 m → 3 m
So: 3.8 m, 4 m, 3 m → Largest: 4000 mm

But wait — let me double-check:
Is 4000 mm really 4 m? Yes! Because 1000 mm = 1 m → so 4000 mm = 4 m.
Yes, that’s correct.

Box 4:
- 9020 m → 9020 m
- 20,000 cm → 20,000 ÷ 100 = 200 m
- 9 km → 9 × 1000 = 9000 m
Compare: 9020 m, 200 m, 9000 m → Largest: 9020 m

Wait — but 9020 > 9000, yes. So 9020 m is biggest.

BUT — hold on! The question says “circle the largest amount”. In Box 4, 9020 m is bigger than 9 km (which is 9000 m). So yes, 9020 m wins.

However, sometimes students might think 9 km is bigger because it has “km”, but numerically 9020 m > 9000 m.

So answers for Part 2:
- Box 1: 1 km
- Box 2: 3 km
- Box 3: 4000 mm
- Box 4: 9020 m

Wait — let me check Box 3 again. Is there a trick?

Box 3:
- 380 cm = 3.8 m
- 4000 mm = 4 m
- 3 m = 3 m
Yes, 4 m is largest → so 4000 mm is correct.

But what if we convert everything to cm?

380 cm
4000 mm = 400 cm (because 10 mm = 1 cm → 4000 ÷ 10 = 400 cm)
3 m = 300 cm
So 400 cm > 380 cm > 300 cm → still 4000 mm is largest.

Good.

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Part 3: Use >, <, or = to compare.

Again, convert to same unit.

1) 3 km vs 2000 m
3 km = 3000 m → 3000 > 2000 → >

2) 1000 m vs 1 km
1 km = 1000 m → =

3) 5 cm vs 50 mm
5 cm = 50 mm → =

4) 300 m vs 3 km
3 km = 3000 m → 300 < 3000 → <

5) 7 m vs 500 cm
7 m = 700 cm → 700 > 500 → >

6) 6 cm vs 80 mm
6 cm = 60 mm → 60 < 80 → <

7) 30 mm vs 3 cm
3 cm = 30 mm → =

8) 800 cm vs 7 m
7 m = 700 cm → 800 > 700 → >

9) 40 cm vs 4 m
4 m = 400 cm → 40 < 400 → <

10) 5 km vs 4900 m
5 km = 5000 m → 5000 > 4900 → >

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Now let’s compile final answers.

Final Answer:

Part 1:
1) 5000
2) 6
3) 80
4) 4
5) 9
6) 12
7) 7000
8) 140
9) 1200
10) 13
11) 13
12) 14

Part 2: Largest in each box:
Box 1: 1 km
Box 2: 3 km
Box 3: 4000 mm
Box 4: 9020 m

Part 3: Comparison symbols:
1) >
2) =
3) =
4) <
5) >
6) <
7) =
8) >
9) <
10) >