Pressure and Stress Conversion Factors Table 37a. Pounds per Square Foot to Kilograms per Square Meter Conversion lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 1,000 4,882.43 100 488.24 10 48.82 1 4.88 0.1 0.49 2,000 9,764.86 200 976.49 20 97.65 2 9.76 0.2 0.98 3,000 14,647.29 300 1,464.73 30 146.47 3 14.65 0.3 1.46 4,000 19,529.72 400 1,952.97 40 195.30 4 19.53 0.4 1.95 5,000 24,412.14 500 2,441.21 50 244.12 5 24.41 0.5 2.44 6,000 29,294.57 600 2,929.46 60 292.95 6 29.29 0.6 2.93 7,000 34,177.00 700 3,417.70 70 341.77 7 34.18 0.7 3.42 8,000 39,059.43 800 3,905.94 80 390.59 8 39.06 0.8 3.91 9,000 43,941.86 900 4,394.19 90 439.42 9 43.94 0.9 4.39 10,000 48,824.28 1,000 4,882.43 100 488.24 10 48.82 1.0 4.88 1 lb/ft 2 = 4.882429 kg/m 2 Table 37b. Kilograms per Square Meter to Pounds per Square Foot Conversion kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 kg/m 2 lb/ft 2 1,000 204.82 100 20.48 10 2.05 1 0.20 0.1 0.02 2,000 409.63 200 40.96 20 4.10 2 0.41 0.2 0.04 3,000 614.45 300 61.44 30 6.14 3 0.61 0.3 0.06 4,000 819.26 400 81.93 40 8.19 4 0.82 0.4 0.08 5,000 1,024.08 500 102.41 50 10.24 5 1.02 0.5 0.10 6,000 1,228.90 600 122.89 60 12.29 6 1.23 0.6 0.12 7,000 1,433.71 700 143.37 70 14.34 7 1.43 0.7 0.14 8,000 1,638.53 800 163.85 80 16.39 8 1.64 0.8 0.16 9,000 1,843.34 900 184.33 90 18.43 9 1.84 0.9 0.18 10,000 2,048.16 1,000 204.82 100 20.48 10 2.05 1.0 0.20 1 kg/m 2 = 0.2048161 lb/ft 2 Table 38a. Pounds Per Square Inch to Kilopascals Conversion → lb/in 2 ↓ 0 1 2 3 4 5 6 7 8 9 kilopascals 0 … 6.895 13.790 20.684 27.579 34.474 41.369 48.263 55.158 62.053 10 68.948 75.842 82.737 89.632 96.527 103.421 110.316 117.211 124.106 131.000 20 137.895 144.790 151.685 158.579 165.474 172.369 179.264 186.158 193.053 199.948 30 206.843 213.737 220.632 227.527 234.422 241.316 248.211 255.106 262.001 268.896 40 275.790 282.685 289.580 296.475 303.369 310.264 317.159 324.054 330.948 337.843 50 344.738 351.633 358.527 365.422 372.317 379.212 386.106 393.001 399.896 406.791 60 413.685 420.580 427.475 434.370 441.264 448.159 455.054 461.949 468.843 475.738 70 482.633 489.528 496.423 503.317 510.212 517.107 524.002 530.896 537.791 544.686 80 551.581 558.475 565.370 572.265 579.160 586.054 592.949 599.844 606.739 613.633 90 620.528 627.423 634.318 641.212 648.107 655.002 661.897 668.791 675.686 682.581 100 689.476 696.370 703.265 710.160 717.055 723.949 730.844 737.739 744.634 751.529 1 lb/in 2 = 6.894757 kPa. Note: 1 kilopascal = 1 kilonewton/meter 2 . Table 38b. Kilopascals to Pounds Per Square Inch Conversion → kPa ↓ 0 1 2 3 4 5 6 7 8 9 lb/in 2 0 … 0.145 0.290 0.435 0.580 0.725 0.870 1.015 1.160 1.305 10 1.450 1.595 1.740 1.885 2.031 2.176 2.321 2.466 2.611 2.756 20 2.901 3.046 3.191 3.336 3.481 3.626 3.771 3.916 4.061 4.206 30 4.351 4.496 4.641 4.786 4.931 5.076 5.221 5.366 5.511 5.656 40 5.802 5.947 6.092 6.237 6.382 6.527 6.672 6.817 6.962 7.107 50 7.252 7.397 7.542 7.687 7.832 7.977 8.122 8.267 8.412 8.557 60 8.702 8.847 8.992 9.137 9.282 9.427 9.572 9.718 9.863 10.008 70 10.153 10.298 10.443 10.588 10.733 10.878 11.023 11.168 11.313 11.458 80 11.603 11.748 11.893 12.038 12.183 12.328 12.473 12.618 12.763 12.908 90 13.053 13.198 13.343 13.489 13.634 13.779 13.924 14.069 14.214 14.359 100 14.504 14.649 14.794 14.939 15.084 15.229 15.374 15.519 15.664 15.809 1 kPa = 0.1450377 lb/in 2 . Note: 1 kilopascal = 1 kilonewton/meter 2 . Machinery's Handbook, 31st Edition
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