OpenOlympiad
Concept 5 of 10Foundation
Video

Unit conversions for perimeter & area

Length conversions:

  • 1 m = 100 cm, 1 cm = 10 mm, 1 km = 1000 m

Area conversions (square the factor!):

  • 1 m² = 10,000 cm² (because 100 × 100)
  • 1 km² = 1,000,000 m²
  • 1 hectare = 10,000 m² (a square of 100 m × 100 m)
  • 1 acre ≈ 4,047 m²
Example
Convert 3 m² to cm²: 3 × 10,000 = 30,000 cm².
💡 Tip:Never just multiply by 100 for area — always 100² = 10,000.
Prefer a video? Open YouTube search for “unit conversion area class 6

🎯 Try it!

5 questions to check what you just read.

0 / 5
  1. Q1.1 m² = ___ cm²:
  2. Q2.1 km² = ___ m²:
  3. Q3.1 hectare = ___ m²:
  4. Q4.Convert 5 m² to cm²:
  5. Q5.4 hectares = ___ m²: