キログラムをポンドに換算するには？
キログラムの数に 2.2046 を掛けます。暗算では 2 倍して 1 割を足すと近い値になります。70 kg なら 140 + 14 = 154 ポンドで、正確な値との差は 0.3 % 未満です。
ポンド = キログラム × 2.2046キログラム = ポンド ÷ 2.2046
この二つの単位が使われる場所
キログラムは接頭語を名前に残す唯一の国際単位系基本単位であり、2019 年からは白金の分銅ではなくプランク定数によって定義されています。 ポンドは 1959 年の国際協定によって正確に 0.45359237 キログラムと定められ、アメリカとイギリスでは体重と買い物の単位であり続けています。
よく使う重さのキログラムとポンド
| 1 kg | 2.20 lb |
| 2 kg | 4.41 lb |
| 5 kg | 11.02 lb |
| 10 kg | 22.05 lb |
| 20 kg（預け入れ荷物） | 44.09 lb |
| 30 kg | 66.14 lb |
| 50 kg | 110.23 lb |
| 60 kg | 132.28 lb |
| 70 kg | 154.32 lb |
| 80 kg | 176.37 lb |
| 100 kg | 220.46 lb |
すべての値を表示
- 1 kg = 2.205 lb
- 2 kg = 4.409 lb
- 3 kg = 6.614 lb
- 4 kg = 8.818 lb
- 5 kg = 11.023 lb
- 6 kg = 13.228 lb
- 7 kg = 15.432 lb
- 8 kg = 17.637 lb
- 9 kg = 19.842 lb
- 10 kg = 22.046 lb
- 11 kg = 24.251 lb
- 12 kg = 26.455 lb
- 13 kg = 28.66 lb
- 14 kg = 30.865 lb
- 15 kg = 33.069 lb
- 16 kg = 35.274 lb
- 17 kg = 37.479 lb
- 18 kg = 39.683 lb
- 19 kg = 41.888 lb
- 20 kg = 44.092 lb
- 21 kg = 46.297 lb
- 22 kg = 48.502 lb
- 23 kg = 50.706 lb
- 24 kg = 52.911 lb
- 25 kg = 55.116 lb
- 26 kg = 57.32 lb
- 27 kg = 59.525 lb
- 28 kg = 61.729 lb
- 29 kg = 63.934 lb
- 30 kg = 66.139 lb
- 31 kg = 68.343 lb
- 32 kg = 70.548 lb
- 33 kg = 72.753 lb
- 34 kg = 74.957 lb
- 35 kg = 77.162 lb
- 36 kg = 79.366 lb
- 37 kg = 81.571 lb
- 38 kg = 83.776 lb
- 39 kg = 85.98 lb
- 40 kg = 88.185 lb
- 41 kg = 90.39 lb
- 42 kg = 92.594 lb
- 43 kg = 94.799 lb
- 44 kg = 97.003 lb
- 45 kg = 99.208 lb
- 46 kg = 101.413 lb
- 47 kg = 103.617 lb
- 48 kg = 105.822 lb
- 49 kg = 108.027 lb
- 50 kg = 110.231 lb
- 51 kg = 112.436 lb
- 52 kg = 114.64 lb
- 53 kg = 116.845 lb
- 54 kg = 119.05 lb
- 55 kg = 121.254 lb
- 56 kg = 123.459 lb
- 57 kg = 125.663 lb
- 58 kg = 127.868 lb
- 59 kg = 130.073 lb
- 60 kg = 132.277 lb
- 61 kg = 134.482 lb
- 62 kg = 136.687 lb
- 63 kg = 138.891 lb
- 64 kg = 141.096 lb
- 65 kg = 143.3 lb
- 66 kg = 145.505 lb
- 67 kg = 147.71 lb
- 68 kg = 149.914 lb
- 69 kg = 152.119 lb
- 70 kg = 154.324 lb
- 71 kg = 156.528 lb
- 72 kg = 158.733 lb
- 73 kg = 160.937 lb
- 74 kg = 163.142 lb
- 75 kg = 165.347 lb
- 76 kg = 167.551 lb
- 77 kg = 169.756 lb
- 78 kg = 171.961 lb
- 79 kg = 174.165 lb
- 80 kg = 176.37 lb
- 81 kg = 178.574 lb
- 82 kg = 180.779 lb
- 83 kg = 182.984 lb
- 84 kg = 185.188 lb
- 85 kg = 187.393 lb
- 86 kg = 189.598 lb
- 87 kg = 191.802 lb
- 88 kg = 194.007 lb
- 89 kg = 196.211 lb
- 90 kg = 198.416 lb
- 91 kg = 200.621 lb
- 92 kg = 202.825 lb
- 93 kg = 205.03 lb
- 94 kg = 207.235 lb
- 95 kg = 209.439 lb
- 96 kg = 211.644 lb
- 97 kg = 213.848 lb
- 98 kg = 216.053 lb
- 99 kg = 218.258 lb
- 100 kg = 220.462 lb
- 101 kg = 222.667 lb
- 102 kg = 224.872 lb
- 103 kg = 227.076 lb
- 104 kg = 229.281 lb
- 105 kg = 231.485 lb
- 106 kg = 233.69 lb
- 107 kg = 235.895 lb
- 108 kg = 238.099 lb
- 109 kg = 240.304 lb
- 110 kg = 242.508 lb
- 111 kg = 244.713 lb
- 112 kg = 246.918 lb
- 113 kg = 249.122 lb
- 114 kg = 251.327 lb
- 115 kg = 253.532 lb
- 116 kg = 255.736 lb
- 117 kg = 257.941 lb
- 118 kg = 260.145 lb
- 119 kg = 262.35 lb
- 120 kg = 264.555 lb
- 121 kg = 266.759 lb
- 122 kg = 268.964 lb
- 123 kg = 271.169 lb
- 124 kg = 273.373 lb
- 125 kg = 275.578 lb
- 126 kg = 277.782 lb
- 127 kg = 279.987 lb
- 128 kg = 282.192 lb
- 129 kg = 284.396 lb
- 130 kg = 286.601 lb
- 131 kg = 288.806 lb
- 132 kg = 291.01 lb
- 133 kg = 293.215 lb
- 134 kg = 295.419 lb
- 135 kg = 297.624 lb
- 136 kg = 299.829 lb
- 137 kg = 302.033 lb
- 138 kg = 304.238 lb
- 139 kg = 306.443 lb
- 140 kg = 308.647 lb
- 141 kg = 310.852 lb
- 142 kg = 313.056 lb
- 143 kg = 315.261 lb
- 144 kg = 317.466 lb
- 145 kg = 319.67 lb
- 146 kg = 321.875 lb
- 147 kg = 324.08 lb
- 148 kg = 326.284 lb
- 149 kg = 328.489 lb
- 150 kg = 330.693 lb
- 151 kg = 332.898 lb
- 152 kg = 335.103 lb
- 153 kg = 337.307 lb
- 154 kg = 339.512 lb
- 155 kg = 341.717 lb
- 156 kg = 343.921 lb
- 157 kg = 346.126 lb
- 158 kg = 348.33 lb
- 159 kg = 350.535 lb
- 160 kg = 352.74 lb
- 161 kg = 354.944 lb
- 162 kg = 357.149 lb
- 163 kg = 359.353 lb
- 164 kg = 361.558 lb
- 165 kg = 363.763 lb
- 166 kg = 365.967 lb
- 167 kg = 368.172 lb
- 168 kg = 370.377 lb
- 169 kg = 372.581 lb
- 170 kg = 374.786 lb
- 171 kg = 376.99 lb
- 172 kg = 379.195 lb
- 173 kg = 381.4 lb
- 174 kg = 383.604 lb
- 175 kg = 385.809 lb
- 176 kg = 388.014 lb
- 177 kg = 390.218 lb
- 178 kg = 392.423 lb
- 179 kg = 394.627 lb
- 180 kg = 396.832 lb
- 181 kg = 399.037 lb
- 182 kg = 401.241 lb
- 183 kg = 403.446 lb
- 184 kg = 405.651 lb
- 185 kg = 407.855 lb
- 186 kg = 410.06 lb
- 187 kg = 412.264 lb
- 188 kg = 414.469 lb
- 189 kg = 416.674 lb
- 190 kg = 418.878 lb
- 191 kg = 421.083 lb
- 192 kg = 423.288 lb
- 193 kg = 425.492 lb
- 194 kg = 427.697 lb
- 195 kg = 429.901 lb
- 196 kg = 432.106 lb
- 197 kg = 434.311 lb
- 198 kg = 436.515 lb
- 199 kg = 438.72 lb
- 200 kg = 440.925 lb
- 205 kg = 451.948 lb
- 210 kg = 462.971 lb
- 215 kg = 473.994 lb
- 220 kg = 485.017 lb
- 225 kg = 496.04 lb
- 230 kg = 507.063 lb
- 235 kg = 518.086 lb
- 240 kg = 529.109 lb
- 245 kg = 540.133 lb
- 250 kg = 551.156 lb
- 255 kg = 562.179 lb
- 260 kg = 573.202 lb
- 265 kg = 584.225 lb
- 270 kg = 595.248 lb
- 275 kg = 606.271 lb
- 280 kg = 617.294 lb
- 285 kg = 628.317 lb
- 290 kg = 639.341 lb
- 295 kg = 650.364 lb
- 300 kg = 661.387 lb
- 305 kg = 672.41 lb
- 310 kg = 683.433 lb
- 315 kg = 694.456 lb
- 320 kg = 705.479 lb
- 325 kg = 716.502 lb
- 330 kg = 727.525 lb
- 335 kg = 738.549 lb
- 340 kg = 749.572 lb
- 345 kg = 760.595 lb
- 350 kg = 771.618 lb
- 355 kg = 782.641 lb
- 360 kg = 793.664 lb
- 365 kg = 804.687 lb
- 370 kg = 815.71 lb
- 375 kg = 826.733 lb
- 380 kg = 837.757 lb
- 385 kg = 848.78 lb
- 390 kg = 859.803 lb
- 395 kg = 870.826 lb
- 400 kg = 881.849 lb
- 405 kg = 892.872 lb
- 410 kg = 903.895 lb
- 415 kg = 914.918 lb
- 420 kg = 925.942 lb
- 425 kg = 936.965 lb
- 430 kg = 947.988 lb
- 435 kg = 959.011 lb
- 440 kg = 970.034 lb
- 445 kg = 981.057 lb
- 450 kg = 992.08 lb
- 455 kg = 1,003.103 lb
- 460 kg = 1,014.126 lb
- 465 kg = 1,025.15 lb
- 470 kg = 1,036.173 lb
- 475 kg = 1,047.196 lb
- 480 kg = 1,058.219 lb
- 485 kg = 1,069.242 lb
- 490 kg = 1,080.265 lb
- 495 kg = 1,091.288 lb
- 500 kg = 1,102.311 lb
- 510 kg = 1,124.358 lb
- 520 kg = 1,146.404 lb
- 530 kg = 1,168.45 lb
- 540 kg = 1,190.496 lb
- 550 kg = 1,212.542 lb
- 560 kg = 1,234.589 lb
- 570 kg = 1,256.635 lb
- 580 kg = 1,278.681 lb
- 590 kg = 1,300.727 lb
- 600 kg = 1,322.774 lb
- 610 kg = 1,344.82 lb
- 620 kg = 1,366.866 lb
- 630 kg = 1,388.912 lb
- 640 kg = 1,410.958 lb
- 650 kg = 1,433.005 lb
- 660 kg = 1,455.051 lb
- 670 kg = 1,477.097 lb
- 680 kg = 1,499.143 lb
- 690 kg = 1,521.19 lb
- 700 kg = 1,543.236 lb
- 710 kg = 1,565.282 lb
- 720 kg = 1,587.328 lb
- 730 kg = 1,609.375 lb
- 740 kg = 1,631.421 lb
- 750 kg = 1,653.467 lb
- 760 kg = 1,675.513 lb
- 770 kg = 1,697.559 lb
- 780 kg = 1,719.606 lb
- 790 kg = 1,741.652 lb
- 800 kg = 1,763.698 lb
- 810 kg = 1,785.744 lb
- 820 kg = 1,807.791 lb
- 830 kg = 1,829.837 lb
- 840 kg = 1,851.883 lb
- 850 kg = 1,873.929 lb
- 860 kg = 1,895.975 lb
- 870 kg = 1,918.022 lb
- 880 kg = 1,940.068 lb
- 890 kg = 1,962.114 lb
- 900 kg = 1,984.16 lb
- 910 kg = 2,006.207 lb
- 920 kg = 2,028.253 lb
- 930 kg = 2,050.299 lb
- 940 kg = 2,072.345 lb
- 950 kg = 2,094.391 lb
- 960 kg = 2,116.438 lb
- 970 kg = 2,138.484 lb
- 980 kg = 2,160.53 lb
- 990 kg = 2,182.576 lb
- 1,000 kg = 2,204.623 lb
- 1,025 kg = 2,259.738 lb
- 1,050 kg = 2,314.854 lb
- 1,075 kg = 2,369.969 lb
- 1,100 kg = 2,425.085 lb
- 1,125 kg = 2,480.2 lb
- 1,150 kg = 2,535.316 lb
- 1,175 kg = 2,590.432 lb
- 1,200 kg = 2,645.547 lb
- 1,225 kg = 2,700.663 lb
- 1,250 kg = 2,755.778 lb
- 1,275 kg = 2,810.894 lb
- 1,300 kg = 2,866.009 lb
- 1,325 kg = 2,921.125 lb
- 1,350 kg = 2,976.241 lb
- 1,375 kg = 3,031.356 lb
- 1,400 kg = 3,086.472 lb
- 1,425 kg = 3,141.587 lb
- 1,450 kg = 3,196.703 lb
- 1,475 kg = 3,251.818 lb
- 1,500 kg = 3,306.934 lb
- 1,525 kg = 3,362.049 lb
- 1,550 kg = 3,417.165 lb
- 1,575 kg = 3,472.281 lb
- 1,600 kg = 3,527.396 lb
- 1,625 kg = 3,582.512 lb
- 1,650 kg = 3,637.627 lb
- 1,675 kg = 3,692.743 lb
- 1,700 kg = 3,747.858 lb
- 1,725 kg = 3,802.974 lb
- 1,750 kg = 3,858.09 lb
- 1,775 kg = 3,913.205 lb
- 1,800 kg = 3,968.321 lb
- 1,825 kg = 4,023.436 lb
- 1,850 kg = 4,078.552 lb
- 1,875 kg = 4,133.667 lb
- 1,900 kg = 4,188.783 lb
- 1,925 kg = 4,243.899 lb
- 1,950 kg = 4,299.014 lb
- 1,975 kg = 4,354.13 lb
- 2,000 kg = 4,409.245 lb
- 2,050 kg = 4,519.476 lb
- 2,100 kg = 4,629.708 lb
- 2,150 kg = 4,739.939 lb
- 2,200 kg = 4,850.17 lb
- 2,250 kg = 4,960.401 lb
- 2,300 kg = 5,070.632 lb
- 2,350 kg = 5,180.863 lb
- 2,400 kg = 5,291.094 lb
- 2,450 kg = 5,401.325 lb
- 2,500 kg = 5,511.557 lb
- 2,550 kg = 5,621.788 lb
- 2,600 kg = 5,732.019 lb
- 2,650 kg = 5,842.25 lb
- 2,700 kg = 5,952.481 lb
- 2,750 kg = 6,062.712 lb
- 2,800 kg = 6,172.943 lb
- 2,850 kg = 6,283.174 lb
- 2,900 kg = 6,393.406 lb
- 2,950 kg = 6,503.637 lb
- 3,000 kg = 6,613.868 lb
- 3,050 kg = 6,724.099 lb
- 3,100 kg = 6,834.33 lb
- 3,150 kg = 6,944.561 lb
- 3,200 kg = 7,054.792 lb
- 3,250 kg = 7,165.024 lb
- 3,300 kg = 7,275.255 lb
- 3,350 kg = 7,385.486 lb
- 3,400 kg = 7,495.717 lb
- 3,450 kg = 7,605.948 lb
- 3,500 kg = 7,716.179 lb
- 3,550 kg = 7,826.41 lb
- 3,600 kg = 7,936.641 lb
- 3,650 kg = 8,046.873 lb
- 3,700 kg = 8,157.104 lb
- 3,750 kg = 8,267.335 lb
- 3,800 kg = 8,377.566 lb
- 3,850 kg = 8,487.797 lb
- 3,900 kg = 8,598.028 lb
- 3,950 kg = 8,708.259 lb
- 4,000 kg = 8,818.49 lb
- 4,050 kg = 8,928.722 lb
- 4,100 kg = 9,038.953 lb
- 4,150 kg = 9,149.184 lb
- 4,200 kg = 9,259.415 lb
- 4,250 kg = 9,369.646 lb
- 4,300 kg = 9,479.877 lb
- 4,350 kg = 9,590.108 lb
- 4,400 kg = 9,700.34 lb
- 4,450 kg = 9,810.571 lb
- 4,500 kg = 9,920.802 lb
- 4,550 kg = 10,031.033 lb
- 4,600 kg = 10,141.264 lb
- 4,650 kg = 10,251.495 lb
- 4,700 kg = 10,361.726 lb
- 4,750 kg = 10,471.957 lb
- 4,800 kg = 10,582.189 lb
- 4,850 kg = 10,692.42 lb
- 4,900 kg = 10,802.651 lb
- 4,950 kg = 10,912.882 lb
- 5,000 kg = 11,023.113 lb
- 5,100 kg = 11,243.575 lb
- 5,200 kg = 11,464.038 lb
- 5,300 kg = 11,684.5 lb
- 5,400 kg = 11,904.962 lb
- 5,500 kg = 12,125.424 lb
- 5,600 kg = 12,345.887 lb
- 5,700 kg = 12,566.349 lb
- 5,800 kg = 12,786.811 lb
- 5,900 kg = 13,007.273 lb
- 6,000 kg = 13,227.736 lb
- 6,100 kg = 13,448.198 lb
- 6,200 kg = 13,668.66 lb
- 6,300 kg = 13,889.123 lb
- 6,400 kg = 14,109.585 lb
- 6,500 kg = 14,330.047 lb
- 6,600 kg = 14,550.509 lb
- 6,700 kg = 14,770.972 lb
- 6,800 kg = 14,991.434 lb
- 6,900 kg = 15,211.896 lb
- 7,000 kg = 15,432.358 lb
- 7,100 kg = 15,652.821 lb
- 7,200 kg = 15,873.283 lb
- 7,300 kg = 16,093.745 lb
- 7,400 kg = 16,314.207 lb
- 7,500 kg = 16,534.67 lb
- 7,600 kg = 16,755.132 lb
- 7,700 kg = 16,975.594 lb
- 7,800 kg = 17,196.056 lb
- 7,900 kg = 17,416.519 lb
- 8,000 kg = 17,636.981 lb
- 8,100 kg = 17,857.443 lb
- 8,200 kg = 18,077.905 lb
- 8,300 kg = 18,298.368 lb
- 8,400 kg = 18,518.83 lb
- 8,500 kg = 18,739.292 lb
- 8,600 kg = 18,959.755 lb
- 8,700 kg = 19,180.217 lb
- 8,800 kg = 19,400.679 lb
- 8,900 kg = 19,621.141 lb
- 9,000 kg = 19,841.604 lb
- 9,100 kg = 20,062.066 lb
- 9,200 kg = 20,282.528 lb
- 9,300 kg = 20,502.99 lb
- 9,400 kg = 20,723.453 lb
- 9,500 kg = 20,943.915 lb
- 9,600 kg = 21,164.377 lb
- 9,700 kg = 21,384.839 lb
- 9,800 kg = 21,605.302 lb
- 9,900 kg = 21,825.764 lb
- 10,000 kg = 22,046.226 lb
国際常用ポンドは 1959 年のポンド・ヤード協定により正確に 0.45359237 kg と定められています。逆数の 2.2046226218 はこの定義から導かれます。 算出方法と出典.
よくある質問
1キログラムは何ポンドですか？
1キログラムは 2.2046 ポンドです。正確な関係は常用ポンドの定義で決まっており、1 lb = 0.45359237 kg ちょうどです。
キログラムからポンドへ暗算するには？
キログラムの数を 2 倍し、その 1 割を足します。80 kg なら 160 + 16 = 176 ポンドで、正確な値 176.37 との差はおよそ 0.2 % です。荷物や体重計の目安には十分です。
航空会社がポンド表示を使うのはなぜですか？
米国の航空会社と一部の英国系航空会社が社内規定でヤード・ポンド法を使っているためです。23 kg の受託手荷物制限はしばしば 50 ポンドと表示されますが、これは実際には 22.68 kg にあたります。
ドイツの Pfund はポンドですか？
違います。差は 10 % を超えます。Pfund はドイツがメートル法を採用して以来ちょうど 500 g で、英米のポンドは 453.59 g です。ein Pfund Mehl と書かれたドイツのレシピは 500 g、すなわち 1.1 ポンドを求めています。オランダの pond やスウェーデンの skålpund も 500 g です。
キログラムはいまも円柱で定義されていますか？
2019 年 5 月 20 日以降は違います。セーヴルに保管されていた白金イリジウム製の国際原器は、数十年のあいだに数マイクログラムを失っていました。基準としては許されないことです。いまキログラムはプランク定数で定義され、その値は 6.62607015 × 10⁻³⁴ ジュール秒に固定されました。実用上の値は髪一筋ぶんも動いていません。変わったのは基準の性質です。