| length | Item | inches (in) | conversion factors (multiply by) | centimimeters (cm) |
| pencil | 7 | 2.5 | 17.5 | |
| book | 9 | 2.5 | 22.5 | |
| shoe | 12 | 2.5 | 30 | |
| feet | centimimeters (cm) | |||
| building hieght | 30 | 30 | 900 | |
| yards | conversion factors (multiply by) | Metres (m) | ||
| football field | 100 | 0.9 | 90 | |
| miles (mi) | conversion factors (multiply by) | kilometers (km) | ||
| Mt.Everest | 5.5 | 1.6 | 8.8 | |
| LA to SF | 350 | 1.6 | 560 |