| long hundredweight | 1 long cwt | 2 long cwt | 3 long cwt | 4 long cwt | 5 long cwt | 6 long cwt | 7 long cwt | 8 long cwt | 9 long cwt | 10 long cwt | 11 long cwt | 12 long cwt | 13 long cwt | 14 long cwt | 15 long cwt | 16 long cwt | 17 long cwt | 18 long cwt | 19 long cwt | 20 long cwt | 21 long cwt | 22 long cwt | 23 long cwt | 24 long cwt | 25 long cwt | 26 long cwt | 27 long cwt | 28 long cwt | 29 long cwt | 30 long cwt | 31 long cwt | 32 long cwt | 33 long cwt | 34 long cwt | 35 long cwt | 36 long cwt | 37 long cwt | 38 long cwt | 39 long cwt | 40 long cwt | 41 long cwt | 42 long cwt | 43 long cwt | 44 long cwt | 45 long cwt | 46 long cwt | 47 long cwt | 48 long cwt | 49 long cwt | 50 long cwt | 51 long cwt | 52 long cwt | 53 long cwt | 54 long cwt | 55 long cwt | 56 long cwt | 57 long cwt | 58 long cwt | 59 long cwt | 60 long cwt | 61 long cwt | 62 long cwt | 63 long cwt | 64 long cwt | 65 long cwt | 66 long cwt | 67 long cwt | 68 long cwt | 69 long cwt | 70 long cwt | 71 long cwt | 72 long cwt | 73 long cwt | 74 long cwt | 75 long cwt | 76 long cwt | 77 long cwt | 78 long cwt | 79 long cwt | 80 long cwt | 81 long cwt | 82 long cwt | 83 long cwt | 84 long cwt | 85 long cwt | 86 long cwt | 87 long cwt | 88 long cwt | 89 long cwt | 90 long cwt | 91 long cwt | 92 long cwt | 93 long cwt | 94 long cwt | 95 long cwt | 96 long cwt | 97 long cwt | 98 long cwt | 99 long cwt | 100 long cwt |
| tonne | 0.0508023 t | 0.1016047 t | 0.1524070 t | 0.2032094 t | 0.2540117 t | 0.3048141 t | 0.3556164 t | 0.4064188 t | 0.4572211 t | 0.5080235 t | 0.5588258 t | 0.6096281 t | 0.6604305 t | 0.7112328 t | 0.7620352 t | 0.8128375 t | 0.8636399 t | 0.9144422 t | 0.9652446 t | 1.0160469 t | 1.0668493 t | 1.1176516 t | 1.1684539 t | 1.2192563 t | 1.2700586 t | 1.3208610 t | 1.3716633 t | 1.4224657 t | 1.4732680 t | 1.5240704 t | 1.5748727 t | 1.6256751 t | 1.6764774 t | 1.7272797 t | 1.7780821 t | 1.8288844 t | 1.8796868 t | 1.9304891 t | 1.9812915 t | 2.0320938 t | 2.0828962 t | 2.1336985 t | 2.1845009 t | 2.2353032 t | 2.2861055 t | 2.3369079 t | 2.3877102 t | 2.4385126 t | 2.4893149 t | 2.5401173 t | 2.5909196 t | 2.6417220 t | 2.6925243 t | 2.7433267 t | 2.7941290 t | 2.8449313 t | 2.8957337 t | 2.9465360 t | 2.9973384 t | 3.0481407 t | 3.0989431 t | 3.1497454 t | 3.2005478 t | 3.2513501 t | 3.3021525 t | 3.3529548 t | 3.4037571 t | 3.4545595 t | 3.5053618 t | 3.5561642 t | 3.6069665 t | 3.6577689 t | 3.7085712 t | 3.7593736 t | 3.8101759 t | 3.8609783 t | 3.9117806 t | 3.9625829 t | 4.0133853 t | 4.0641876 t | 4.1149900 t | 4.1657923 t | 4.2165947 t | 4.2673970 t | 4.3181994 t | 4.3690017 t | 4.4198041 t | 4.4706064 t | 4.5214087 t | 4.5722111 t | 4.6230134 t | 4.6738158 t | 4.7246181 t | 4.7754205 t | 4.8262228 t | 4.8770252 t | 4.9278275 t | 4.9786299 t | 5.0294322 t | 5.0802345 t |
The long or imperial hundredweight of 8 stone (112 lb or 50.802345 kg) sees informal use in the imperial system but according to Schedule 1, Part VI of the Weights and Measures Act 1985, is no longer to be used for trade after the Act came into force.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| long hundredweight | long cwt | ≡ 112 lb av | = 50.80234544 kg | Imperial/US |
| long hundredweights | tonnes | long hundredweights | tonnes |
|---|---|---|---|
| 1 | = 0.05080234544 | 11 | = 0.55882579984 |
| 2.5 | = 0.1270058636 | 12.5 | = 0.635029318 |
| 4 | = 0.20320938176 | 14 | = 0.71123283616 |
| 5.5 | = 0.27941289992 | 15.5 | = 0.78743635432 |
| 7 | = 0.35561641808 | 17 | = 0.86363987248 |
| 8.5 | = 0.43181993624 | 18.5 | = 0.93984339064 |
| 10 | = 0.5080234544 | 20 | = 1.0160469088 |
The tonne (non-preferred SI derived unit; SI symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms; or one megagram (Mg); it is equivalent to approximately 2,204.6 pounds, 1.10 short tons (US) or 0.984 long tons (imperial). Although not part of the SI per se, the tonne is "accepted for use with" SI units and prefixes by the International Committee for Weights and Measures, along with several other units like the bar, litre and day.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| tonne | t | ≡ 1000 kg | ≡ 1000 kg | Metric system SI |
| tonnes | long hundredweights | tonnes | long hundredweights |
|---|---|---|---|
| 1 | = 19.684130552221 | 11 | = 216.52543607443 |
| 2.5 | = 49.210326380553 | 12.5 | = 246.05163190277 |
| 4 | = 78.736522208885 | 14 | = 275.5778277311 |
| 5.5 | = 108.26271803722 | 15.5 | = 305.10402355943 |
| 7 | = 137.78891386555 | 17 | = 334.63021938776 |
| 8.5 | = 167.31510969388 | 18.5 | = 364.15641521609 |
| 10 | = 196.84130552221 | 20 | = 393.68261104442 |
| long hundredweights | tonnes |
|---|---|
| 1 | = 0.0508023 |
| 19.6841306 | = 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 …) |