21 oz to lb
21 ounces in pounds
21 oz = 1.3125 lb
lb = oz × 1/16
21 ounces is 1.3125 pounds. To get there, multiply by 0.0625.
Values either side
| Ounces | Pounds |
|---|---|
| 17 oz | 1.0625 |
| 18 oz | 1.125 |
| 19 oz | 1.1875 |
| 20 oz | 1.25 |
| 21 oz ← | 1.3125 |
| 22 oz | 1.375 |
| 23 oz | 1.4375 |
| 24 oz | 1.5 |
| 25 oz | 1.5625 |
How the conversion works
The relationship is lb = oz × 1/16. Both units measure mass, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Common questions
- What is 21 oz in pounds?
- 21 oz is 1.3125 lb.
- How do you convert ounces to pounds?
- Multiply by 0.0625.
Related pages
- Ounces to pounds Full table and converter
- 21 lb to oz The other direction
- 17 oz to lb 1.0625 lb
- 18 oz to lb 1.125 lb
- 19 oz to lb 1.1875 lb
- 20 oz to lb 1.25 lb
- 22 oz to lb 1.375 lb
- 23 oz to lb 1.4375 lb
- 24 oz to lb 1.5 lb
- 25 oz to lb 1.5625 lb
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place