Across
- 3. roman numeral i
- 5. kg
- 6. metric version of Fahrenheit
- 10. ml
- 12. u in metric stairs
- 13. only three countries use this unit
Down
- 1. h in metric stairs
- 2. roman numeral iv
- 4. roman numeral v
- 6. c in metric stairs
- 7. roman numeral vi
- 8. k in metric stairs
- 9. majority of the world uses this system
- 10. m in metric stairs
- 11. roman numeral x