Inches - The actual length of the item in inches.
Feet - The equivalent of inches in decimalised feet.
MM - The conversion of inches to actual millimetres.
Scale " - The actual inches converted to inches in 1:87.1 scale
Scale MM - The actual inches converted to actual millimetres in 1:87.1 scale
| INCHES | FEET | MM | SCALE " | SCALE MM |
| 0.5 | 0.04167 | 12.7 | 0.005747126 | 0.14598 |
| 1 | 0.08333 | 25.4 | 0.011494253 | 0.29195 |
| 1.5 | 0.12500 | 38.1 | 0.017241379 | 0.43793 |
| 2 | 0.16667 | 50.8 | 0.022988506 | 0.58391 |
| 3 | 0.25000 | 76.2 | 0.034482759 | 0.87586 |
| 4 | 0.33333 | 101.6 | 0.045977011 | 1.16782 |
| 5 | 0.41667 | 127 | 0.057471264 | 1.45977 |
| 6 | 0.50000 | 152.4 | 0.068965517 | 1.75172 |
| 7 | 0.58333 | 177.8 | 0.08045977 | 2.04368 |
| 8 | 0.66667 | 203.2 | 0.091954023 | 2.33563 |
| 9 | 0.75000 | 228.6 | 0.103448276 | 2.62759 |
| 10 | 0.83333 | 254 | 0.114942529 | 2.91954 |
| 11 | 0.91667 | 279.4 | 0.126436782 | 3.21149 |
| 12 | 1.00000 | 304.8 | 0.137931034 | 3.50345 |
| RIVETS | 0.45000 | |||
| 13.5 | 1.12500 | 342.9 | 0.155172414 | 3.94138 |
| 15 | 1.25000 | 381 | 0.172413793 | 4.37931 |
| 18 | 1.50000 | 457.2 | 0.206896552 | 5.25517 |
| 21 | 1.75000 | 533.4 | 0.24137931 | 6.13103 |
| 24 | 2.00000 | 609.6 | 0.275862069 | 7.00690 |
| 27 | 2.25000 | 685.8 | 0.310344828 | 7.88276 |
| 30 | 2.50000 | 762 | 0.344827586 | 8.75862 |
| 33 | 2.75000 | 838.2 | 0.379310345 | 9.63448 |
| 36 | 3.00000 | 914.4 | 0.413793103 | 10.51034 |
| 39 | 3.25000 | 990.6 | 0.448275862 | 11.38621 |
| 42 | 3.50000 | 1066.8 | 0.482758621 | 12.26207 |
| 45 | 3.75000 | 1143 | 0.517241379 | 13.13793 |
| 48 | 4.00000 | 1219.2 | 0.551724138 | 14.01379 |
| 51 | 4.25000 | 1295.4 | 0.586206897 | 14.88966 |
| 58.5 | 4.87500 | 1485.9 | 0.672413793 | 17.07931 |
| 60 | 5.00000 | 1524 | 0.689655172 | 17.51724 |
| 63 | 5.25000 | 1600.2 | 0.724137931 | 18.39310 |
| 66 | 5.50000 | 1676.4 | 0.75862069 | 19.26897 |
| 69 | 5.75000 | 1752.6 | 0.793103448 | 20.14483 |
| 72 | 6.00000 | 1828.8 | 0.827586207 | 21.02069 |
| 75 | 6.25000 | 1905 | 0.862068966 | 21.89655 |
| 78 | 6.50000 | 1981.2 | 0.896551724 | 22.77241 |
| 81 | 6.75000 | 2057.4 | 0.931034483 | 23.64828 |
| 84 | 7.00000 | 2133.6 | 0.965517241 | 24.52414 |
| 87 | 7.25000 | 2209.8 | 1 | 25.40000 |
| 90 | 7.50000 | 2286 | 1.034482759 | 26.27586 |
| 93 | 7.75000 | 2362.2 | 1.068965517 | 27.15172 |
| 96 | 8.00000 | 2438.4 | 1.103448276 | 28.02759 |
| 99 | 8.25000 | 2514.6 | 1.137931034 | 28.90345 |
| 102 | 8.50000 | 2590.8 | 1.172413793 | 29.77931 |
| 105 | 8.75000 | 2667 | 1.206896552 | 30.65517 |
| 108 | 9.00000 | 2743.2 | 1.24137931 | 31.53103 |
| 111 | 9.25000 | 2819.4 | 1.275862069 | 32.40690 |
| 114 | 9.50000 | 2895.6 | 1.310344828 | 33.28276 |
| 117 | 9.75000 | 2971.8 | 1.344827586 | 34.15862 |
| 120 | 10.00000 | 3048 | 1.379310345 | 35.03448 |
| 132 | 11.00000 | 3352.8 | 1.517241379 | 38.53793 |
| 144 | 12.00000 | 3657.6 | 1.655172414 | 42.04138 |
| 156 | 13.00000 | 3962.4 | 1.793103448 | 45.54483 |
| 162 | 13.50000 | 4114.8 | 1.862068966 | 47.29655 |
| 168 | 14.00000 | 4267.2 | 1.931034483 | 49.04828 |
| 180 | 15.00000 | 4572 | 2.068965517 | 52.55172 |
| 192 | 16.00000 | 4876.8 | 2.206896552 | 56.05517 |
| 204 | 17.00000 | 5181.6 | 2.344827586 | 59.55862 |
| 216 | 18.00000 | 5486.4 | 2.482758621 | 63.06207 |
| 228 | 19.00000 | 5791.2 | 2.620689655 | 66.56552 |
| 240 | 20.00000 | 6096 | 2.75862069 | 70.06897 |
| 252 | 21.00000 | 6400.8 | 2.896551724 | 73.57241 |
| 264 | 22.00000 | 6705.6 | 3.034482759 | 77.07586 |
| 276 | 23.00000 | 7010.4 | 3.172413793 | 80.57931 |
| 288 | 24.00000 | 7315.2 | 3.310344828 | 84.08276 |
| 300 | 25.00000 | 7620 | 3.448275862 | 87.58621 |
| 312 | 26.00000 | 7924.8 | 3.586206897 | 91.08966 |
| 324 | 27.00000 | 8229.6 | 3.724137931 | 94.59310 |
| 336 | 28.00000 | 8534.4 | 3.862068966 | 98.09655 |
| 348 | 29.00000 | 8839.2 | 4 | 101.60000 |
| 360 | 30.00000 | 9144 | 4.137931034 | 105.10345 |
| 372 | 31.00000 | 9448.8 | 4.275862069 | 108.60690 |
| 384 | 32.00000 | 9753.6 | 4.413793103 | 112.11034 |
| 396 | 33.00000 | 10058.4 | 4.551724138 | 115.61379 |
| 408 | 34.00000 | 10363.2 | 4.689655172 | 119.11724 |
| 420 | 35.00000 | 10668 | 4.827586207 | 122.62069 |
| 432 | 36.00000 | 10972.8 | 4.965517241 | 126.12414 |
| 444 | 37.00000 | 11277.6 | 5.103448276 | 129.62759 |
| 456 | 38.00000 | 11582.4 | 5.24137931 | 133.13103 |
| 468 | 39.00000 | 11887.2 | 5.379310345 | 136.63448 |
| 477 | 39.75000 | 12115.8 | 5.482758621 | 139.26207 |
| 480 | 40.00000 | 12192 | 5.517241379 | 140.13793 |