| troy pound | 1 lb t | 2 lb t | 3 lb t | 4 lb t | 5 lb t | 6 lb t | 7 lb t | 8 lb t | 9 lb t | 10 lb t | 11 lb t | 12 lb t | 13 lb t | 14 lb t | 15 lb t | 16 lb t | 17 lb t | 18 lb t | 19 lb t | 20 lb t | 21 lb t | 22 lb t | 23 lb t | 24 lb t | 25 lb t | 26 lb t | 27 lb t | 28 lb t | 29 lb t | 30 lb t | 31 lb t | 32 lb t | 33 lb t | 34 lb t | 35 lb t | 36 lb t | 37 lb t | 38 lb t | 39 lb t | 40 lb t | 41 lb t | 42 lb t | 43 lb t | 44 lb t | 45 lb t | 46 lb t | 47 lb t | 48 lb t | 49 lb t | 50 lb t | 51 lb t | 52 lb t | 53 lb t | 54 lb t | 55 lb t | 56 lb t | 57 lb t | 58 lb t | 59 lb t | 60 lb t | 61 lb t | 62 lb t | 63 lb t | 64 lb t | 65 lb t | 66 lb t | 67 lb t | 68 lb t | 69 lb t | 70 lb t | 71 lb t | 72 lb t | 73 lb t | 74 lb t | 75 lb t | 76 lb t | 77 lb t | 78 lb t | 79 lb t | 80 lb t | 81 lb t | 82 lb t | 83 lb t | 84 lb t | 85 lb t | 86 lb t | 87 lb t | 88 lb t | 89 lb t | 90 lb t | 91 lb t | 92 lb t | 93 lb t | 94 lb t | 95 lb t | 96 lb t | 97 lb t | 98 lb t | 99 lb t | 100 lb t |
| stone | 0.0587755 st | 0.1175510 st | 0.1763265 st | 0.2351020 st | 0.2938776 st | 0.3526531 st | 0.4114286 st | 0.4702041 st | 0.5289796 st | 0.5877551 st | 0.6465306 st | 0.7053061 st | 0.7640816 st | 0.8228571 st | 0.8816327 st | 0.9404082 st | 0.9991837 st | 1.0579592 st | 1.1167347 st | 1.1755102 st | 1.2342857 st | 1.2930612 st | 1.3518367 st | 1.4106122 st | 1.4693878 st | 1.5281633 st | 1.5869388 st | 1.6457143 st | 1.7044898 st | 1.7632653 st | 1.8220408 st | 1.8808163 st | 1.9395918 st | 1.9983673 st | 2.0571429 st | 2.1159184 st | 2.1746939 st | 2.2334694 st | 2.2922449 st | 2.3510204 st | 2.4097959 st | 2.4685714 st | 2.5273469 st | 2.5861224 st | 2.6448980 st | 2.7036735 st | 2.7624490 st | 2.8212245 st | 2.88 st | 2.9387755 st | 2.9975510 st | 3.0563265 st | 3.1151020 st | 3.1738776 st | 3.2326531 st | 3.2914286 st | 3.3502041 st | 3.4089796 st | 3.4677551 st | 3.5265306 st | 3.5853061 st | 3.6440816 st | 3.7028571 st | 3.7616327 st | 3.8204082 st | 3.8791837 st | 3.9379592 st | 3.9967347 st | 4.0555102 st | 4.1142857 st | 4.1730612 st | 4.2318367 st | 4.2906122 st | 4.3493878 st | 4.4081633 st | 4.4669388 st | 4.5257143 st | 4.5844898 st | 4.6432653 st | 4.7020408 st | 4.7608163 st | 4.8195918 st | 4.8783673 st | 4.9371429 st | 4.9959184 st | 5.0546939 st | 5.1134694 st | 5.1722449 st | 5.2310204 st | 5.2897959 st | 5.3485714 st | 5.4073469 st | 5.4661224 st | 5.5248980 st | 5.5836735 st | 5.6424490 st | 5.7012245 st | 5.76 st | 5.8187755 st | 5.8775510 st |
The troy pound is 5 760 grains (≈ 373.24 g, 12 oz t), while an avoirdupois pound is approximately 21.53% heavier at 7 000 grains (≈ 453.59 g).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| troy pound | lb t | ≡ 5760 grains | = 0.3732417216 kg | Imperial/US |
| troy pounds | stones | troy pounds | stones |
|---|---|---|---|
| 1 | = 0.058775510204082 | 11 | = 0.6465306122449 |
| 2.5 | = 0.1469387755102 | 12.5 | = 0.73469387755102 |
| 4 | = 0.23510204081633 | 14 | = 0.82285714285714 |
| 5.5 | = 0.32326530612245 | 15.5 | = 0.91102040816327 |
| 7 | = 0.41142857142857 | 17 | = 0.99918367346939 |
| 8.5 | = 0.49959183673469 | 18.5 | = 1.0873469387755 |
| 10 | = 0.58775510204082 | 20 | = 1.1755102040816 |
The stone or stone weight (abbreviation: st.) is an English and imperial unit of mass now equal to 14 pounds (6.35029318 kg).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| stone | st | ≡ 14 lb av | = 6.35029318 kg | Imperial/US |
| stones | troy pounds | stones | troy pounds |
|---|---|---|---|
| 1 | = 17.013888888889 | 11 | = 187.15277777778 |
| 2.5 | = 42.534722222222 | 12.5 | = 212.67361111111 |
| 4 | = 68.055555555556 | 14 | = 238.19444444444 |
| 5.5 | = 93.576388888889 | 15.5 | = 263.71527777778 |
| 7 | = 119.09722222222 | 17 | = 289.23611111111 |
| 8.5 | = 144.61805555556 | 18.5 | = 314.75694444444 |
| 10 | = 170.13888888889 | 20 | = 340.27777777778 |
| troy pounds | stones |
|---|---|
| 1 | = 0.0587755 |
| 17.0138889 | = 1 |
| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |