Engineering Data
Temperature Conversion Table
Locate known temperature in °C/°F column.
Read converted temperature in °C/°F column.
| °C | °C/°F | °F | °C | °C/°F | °F | °C | °C/°F | °F |
| -45.4 | -50 | -58 | 15.5 | 60 | 140 | 76.5 | 170 | 338 |
| -42.7 | -45 | -49 | 18.3 | 65 | 149 | 79.3 | 175 | 347 |
| -40 | -40 | -40 | 21.1 | 70 | 158 | 82.1 | 180 | 356 |
| -37.2 | -35 | -31 | 23.9 | 75 | 167 | 85.0 | 185 | 365 |
| -34.4 | -30 | -22 | 26.6 | 80 | 176 | 87.6 | 190 | 374 |
| -32.2 | -25 | -13 | 29.4 | 85 | 185 | 90.4 | 195 | 383 |
| -29.4 | -20 | -4 | 32.2 | 90 | 194 | 93.2 | 200 | 392 |
| -26.6 | -15 | 5 | 35.0 | 95 | 203 | 96.0 | 205 | 401 |
| -23.8 | -10 | 14 | 37.8 | 100 | 212 | 98.8 | 210 | 410 |
| -20.5 | -5 | 23 | 40.5 | 105 | 221 | 101.6 | 215 | 419 |
| -17.8 | 0 | 32 | 43.4 | 110 | 230 | 104.4 | 220 | 428 |
| -15 | 5 | 41 | 46.1 | 115 | 239 | 107.2 | 225 | 437 |
| -12.2 | 10 | 50 | 48.9 | 120 | 248 | 110.0 | 230 | 446 |
| -9.4 | 15 | 59 | 51.6 | 125 | 257 | 112.8 | 235 | 455 |
| -6.7 | 20 | 68 | 54.4 | 130 | 266 | 115.6 | 210 | 464 |
| -3.9 | 25 | 77 | 57.1 | 135 | 275 | 118.2 | 245 | 473 |
| -1.1 | 30 | 86 | 60.0 | 140 | 284 | 120.9 | 250 | 482 |
| 1.7 | 35 | 95 | 62.7 | 145 | 293 | 123.7 | 255 | 491 |
| 4.4 | 40 | 104 | 65.5 | 150 | 302 | 126.5 | 260 | 500 |
| 7.2 | 45 | 113 | 68.3 | 155 | 311 | 129.3 | 265 | 509 |
| 10 | 50 | 122 | 71.0 | 160 | 320 | 132.2 | 270 | 518 |
| 12.8 | 55 | 131 | 73.8 | 165 | 329 | 136 | 275 | 527 |
°F = (9/5 x °C) + 32
°C = 5/9 (°F-32)
Mechanical Characteristics
| To Find: | Use: |
| Torque in Inch-Pounds | (HP x 63,025) / RPM |
| Horsepower | (Torque (lb. in.) x RPM) / 63025 |
| RPM | (120 x Frequency) / Number of Poles |
Converting Torque Units
Inch-Pounds and Newton Meters
| Torque(lb. in.) | 8.85 x Nm or 88.5 x daNm |
| Torque(Nm) | (lb. in) / 8.85 |
| Torque(daNm) | (lb. in) / 88.5 |
Electrical Characteristics
| To Find: | Use: Single Phase | Or: Three Phase |
| Amperes Knowing HP | (HP x 746) / (E x Eff x Pf) | (HP x 746) / (1.73 x E x Eff x Pf) |
| Amperes Knowing kW | (kWx1000) / (E x Pf) | (kWx1000) / (1.73 x E x Pf) |
| Amperes Knowing kVA | (kVA x 1000) / (E) | (kVA x 1000) / (1.73 x E) |
| Kilowatts | (I x E x PF) / (1000) | (1.73 x I x E x PF) / (1000) |
| kVA | (I x E) / (1000) | (1.73 x I x E x PF) / (1000) |
| HP (output) | (I x E x Eff x PF) / (746) | (1.73 x I x E x Eff x PF) / (746) |
I = amperes
Eff = efficiency
PF = power factor
RPM = kilovolt amperes
E = volts
kW = kilowatts
HP = horsepower
revolutions per minute kVA
Fractional/Decimal/Millimeter Conversion
| Fraction | Decimal | Millimeter | Fraction | Decimal | Millimeter | MM | Inch |
| 1/64 | 0.015625 | 0.397 | 33/64 | 0.515625 | 13.097 | 1 | 0.039 |
| 1/32 | 0.03125 | 0.794 | 17/32 | 0.53125 | 13494 | 2 | 0.079 |
| 3/64 | 0.046875 | 1.191 | 35/64 | 0.546875 | 13.891 | 3 | 0.1181 |
| 1/16 | 0.0625 | 1.588 | 9/16 | 0.5625 | 14.288 | 4 | 0.1575 |
| 5/64 | 0.078125 | 1.984 | 37/64 | 0.578125 | 14.684 | 5 | 0.1969 |
| 3/32 | 0.09375 | 2.381 | 19/32 | 0.59375 | 15.081 | 6 | 0.2362 |
| 7/64 | 0.109375 | 2.778 | 39/64 | 0.609375 | 15.478 | 7 | 0.2756 |
| 1/8 | 0.125 | 3.175 | 5/8 | 0.625 | 15.875 | 8 | 0.315 |
| 9/64 | 0.140625 | 3.572 | 41/64 | 0.640625 | 16.272 | 9 | 0.3543 |
| 5/32 | 0.15625 | 3.969 | 21/32 | 0.65625 | 16.669 | 10 | 0.3937 |
| 11/64 | 0.171875 | 4.366 | 43/64 | 0.671875 | 17.066 | 11 | 0.4331 |
| 3/16 | 0.1875 | 4.762 | 11/16 | 0.6875 | 17.462 | 12 | 0.4724 |
| 13/64 | 0.203125 | 5.129 | 45/64 | 0.703125 | 17.859 | 13 | 0.5119 |
| 7/32 | 0.21875 | 5.556 | 23/32 | 0.71875 | 18.256 | 14 | 0.5519 |
| 15/64 | 0.234375 | 5.953 | 47/64 | 0.734375 | 18.653 | 15 | 0.5906 |
| 1/4 | 0.25 | 6.35 | 3/4 | 0.75 | 19.05 | 16 | 0.63 |
| 17/64 | 0.265625 | 6.747 | 49/64 | 0.765625 | 19.447 | 17 | 0.6693 |
| 9/32 | 0.28125 | 7.144 | 25/32 | 0.78125 | 19.844 | 18 | 0.7087 |
| 19/64 | 0.296875 | 7.541 | 51/64 | 0.796875 | 20.241 | 19 | 0.748 |
| 5/16 | 0.3125 | 7.938 | 13/16 | 0.8125 | 20.638 | 20 | 0.7874 |
| 21/64 | 0.328125 | 8.334 | 53/64 | 0.828125 | 21.034 | 21 | 0.8268 |
| 11/32 | 0.34375 | 8.731 | 27/32 | 0.84375 | 21.431 | 22 | 0.8661 |
| 23/64 | 0.359375 | 9.128 | 55/64 | 0.859375 | 21.828 | 23 | 0.9055 |
| 3/8 | 0.375 | 9.525 | 7/8 | 0.875 | 22.225 | 24 | 0.9449 |
| 25/64 | 0.390625 | 9.921 | 57/64 | 0.890625 | 22.622 | 25 | 0.9843 |
| 13/32 | 0.40625 | 10.319 | 29/32 | 0.90625 | 23.019 | ||
| 27/64 | 0.421875 | 10.716 | 59/64 | 0.921875 | 23.416 | ||
| 7/16 | 0.4375 | 11.112 | 15/16 | 0.9375 | 23.812 | ||
| 29/64 | 0.453125 | 11.509 | 61/64 | 0.953125 | 24.209 | ||
| 15/32 | 0.46875 | 11.906 | 31/32 | 0.96875 | 24.606 | ||
| 31/64 | 0.484375 | 12.303 | 63/64 | 0.984375 | 25.003 | ||
| 1/2 | 0.5 | 12.7 | 1 | 1 | 25.4 | ||
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To convert millimeters to inches, multiply by .03937
To convert inches to millimeters, multiply by 25.40
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