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Conversion Tables

Metric Conversion Chart
Symbol When you know Multiply by To Find Symbol
in inches 25.4 millimeters mm
mm millimeters 0.039 inches in
in inches 2.54 centimeters cm
cm centimeters 0.394 inches in
ft feet 30.48 centimeters cm
cm centimeters 0.033 feet ft
ft feet

0.305

meters m
m meters 3.281 feet ft
yd yards 0.914 meters m
m meters 1.094 yards yd
oz ounces 28.35 grams g
g grams 0.035 ounces oz
lb pounds 0.454 kilograms kg
kg kilograms 2.205 pounds lb

Incandescent Colors and Temperatures
Color °F °C
Black Red 990 533
Dark Blood Red 1050 565
Dark Cherry Red 1175 634
Medium Cherry Red 1250 676
Full Cherry Red 1375 745
Light Cherry 1550 843
Salmon 1650 899
Light Salmon 1725 940
Yellow 1825 995
Light Yellow 1975 1078
White 2220 1203

Colors of Tempering Heats
Color °F °C
Light Straw 430 222
Straw 450 232
Dark Straw 470 244
Yellow Brown 490 255
Dark Brown 510 265
Brown Purple 520 271
Dark Purple 530 277
Bright Purple 550 288
Full Blue 560 293
Dark Blue 600 316

Hardness Testing Conversion Table
Rockwell C
120 Cone
150 Kg
Brinell
3000 Kg
10 MM Ball
Rockwell C
120 Cone
150 Kg
Brinell
3000 Kg
10 MM Ball
  156 32 302
  159 33 311
  163 34 321
  166 35 332
  170 36 340
  174 37 351
  179 39 364
  183 40 375
  187 41 387
  192 43 402
10 196 44 418
12 202 45 430
14 207 46 444
17 212 48 460
19 217 49 477
21 223 50 495
22 228 52 512
23 235 54 532
24 241 56 555
25 248 58 578
26 255 60 600
27 262 62 627
28 269 65 652
29 277 66 683
30 293 68 744
31 293 68 744
Updated: 04/14/2014
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