ポンドをキログラムに換算するには？
ポンドの数に 0.4536 を掛けます。暗算では半分にして 1 割を引くと近い値になります。150 ポンドなら 75 − 7.5 = 67.5 kg で、正確な値は 68.04 kg です。
キログラム = ポンド × 0.45359237ポンド = キログラム × 2.2046
この二つの単位が使われる場所
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。 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。
よく使う重さのポンドとキログラム
| 1 lb | 0.45 kg |
| 5 lb | 2.27 kg |
| 10 lb | 4.54 kg |
| 20 lb | 9.07 kg |
| 25 lb | 11.34 kg |
| 50 lb（米国の預け入れ荷物） | 22.68 kg |
| 75 lb | 34.02 kg |
| 100 lb | 45.36 kg |
| 150 lb | 68.04 kg |
| 180 lb | 81.65 kg |
| 200 lb | 90.72 kg |
すべての値を表示
- 1 lb = 0.4536 kg
- 2 lb = 0.9072 kg
- 3 lb = 1.3608 kg
- 4 lb = 1.8144 kg
- 5 lb = 2.268 kg
- 6 lb = 2.7216 kg
- 7 lb = 3.1751 kg
- 8 lb = 3.6287 kg
- 9 lb = 4.0823 kg
- 10 lb = 4.5359 kg
- 11 lb = 4.9895 kg
- 12 lb = 5.4431 kg
- 13 lb = 5.8967 kg
- 14 lb = 6.3503 kg
- 15 lb = 6.8039 kg
- 16 lb = 7.2575 kg
- 17 lb = 7.7111 kg
- 18 lb = 8.1647 kg
- 19 lb = 8.6183 kg
- 20 lb = 9.0718 kg
- 21 lb = 9.5254 kg
- 22 lb = 9.979 kg
- 23 lb = 10.4326 kg
- 24 lb = 10.8862 kg
- 25 lb = 11.3398 kg
- 26 lb = 11.7934 kg
- 27 lb = 12.247 kg
- 28 lb = 12.7006 kg
- 29 lb = 13.1542 kg
- 30 lb = 13.6078 kg
- 31 lb = 14.0614 kg
- 32 lb = 14.515 kg
- 33 lb = 14.9685 kg
- 34 lb = 15.4221 kg
- 35 lb = 15.8757 kg
- 36 lb = 16.3293 kg
- 37 lb = 16.7829 kg
- 38 lb = 17.2365 kg
- 39 lb = 17.6901 kg
- 40 lb = 18.1437 kg
- 41 lb = 18.5973 kg
- 42 lb = 19.0509 kg
- 43 lb = 19.5045 kg
- 44 lb = 19.9581 kg
- 45 lb = 20.4117 kg
- 46 lb = 20.8652 kg
- 47 lb = 21.3188 kg
- 48 lb = 21.7724 kg
- 49 lb = 22.226 kg
- 50 lb = 22.6796 kg
- 51 lb = 23.1332 kg
- 52 lb = 23.5868 kg
- 53 lb = 24.0404 kg
- 54 lb = 24.494 kg
- 55 lb = 24.9476 kg
- 56 lb = 25.4012 kg
- 57 lb = 25.8548 kg
- 58 lb = 26.3084 kg
- 59 lb = 26.7619 kg
- 60 lb = 27.2155 kg
- 61 lb = 27.6691 kg
- 62 lb = 28.1227 kg
- 63 lb = 28.5763 kg
- 64 lb = 29.0299 kg
- 65 lb = 29.4835 kg
- 66 lb = 29.9371 kg
- 67 lb = 30.3907 kg
- 68 lb = 30.8443 kg
- 69 lb = 31.2979 kg
- 70 lb = 31.7515 kg
- 71 lb = 32.2051 kg
- 72 lb = 32.6587 kg
- 73 lb = 33.1122 kg
- 74 lb = 33.5658 kg
- 75 lb = 34.0194 kg
- 76 lb = 34.473 kg
- 77 lb = 34.9266 kg
- 78 lb = 35.3802 kg
- 79 lb = 35.8338 kg
- 80 lb = 36.2874 kg
- 81 lb = 36.741 kg
- 82 lb = 37.1946 kg
- 83 lb = 37.6482 kg
- 84 lb = 38.1018 kg
- 85 lb = 38.5554 kg
- 86 lb = 39.0089 kg
- 87 lb = 39.4625 kg
- 88 lb = 39.9161 kg
- 89 lb = 40.3697 kg
- 90 lb = 40.8233 kg
- 91 lb = 41.2769 kg
- 92 lb = 41.7305 kg
- 93 lb = 42.1841 kg
- 94 lb = 42.6377 kg
- 95 lb = 43.0913 kg
- 96 lb = 43.5449 kg
- 97 lb = 43.9985 kg
- 98 lb = 44.4521 kg
- 99 lb = 44.9056 kg
- 100 lb = 45.3592 kg
- 101 lb = 45.8128 kg
- 102 lb = 46.2664 kg
- 103 lb = 46.72 kg
- 104 lb = 47.1736 kg
- 105 lb = 47.6272 kg
- 106 lb = 48.0808 kg
- 107 lb = 48.5344 kg
- 108 lb = 48.988 kg
- 109 lb = 49.4416 kg
- 110 lb = 49.8952 kg
- 111 lb = 50.3488 kg
- 112 lb = 50.8023 kg
- 113 lb = 51.2559 kg
- 114 lb = 51.7095 kg
- 115 lb = 52.1631 kg
- 116 lb = 52.6167 kg
- 117 lb = 53.0703 kg
- 118 lb = 53.5239 kg
- 119 lb = 53.9775 kg
- 120 lb = 54.4311 kg
- 121 lb = 54.8847 kg
- 122 lb = 55.3383 kg
- 123 lb = 55.7919 kg
- 124 lb = 56.2455 kg
- 125 lb = 56.699 kg
- 126 lb = 57.1526 kg
- 127 lb = 57.6062 kg
- 128 lb = 58.0598 kg
- 129 lb = 58.5134 kg
- 130 lb = 58.967 kg
- 131 lb = 59.4206 kg
- 132 lb = 59.8742 kg
- 133 lb = 60.3278 kg
- 134 lb = 60.7814 kg
- 135 lb = 61.235 kg
- 136 lb = 61.6886 kg
- 137 lb = 62.1422 kg
- 138 lb = 62.5957 kg
- 139 lb = 63.0493 kg
- 140 lb = 63.5029 kg
- 141 lb = 63.9565 kg
- 142 lb = 64.4101 kg
- 143 lb = 64.8637 kg
- 144 lb = 65.3173 kg
- 145 lb = 65.7709 kg
- 146 lb = 66.2245 kg
- 147 lb = 66.6781 kg
- 148 lb = 67.1317 kg
- 149 lb = 67.5853 kg
- 150 lb = 68.0389 kg
- 151 lb = 68.4924 kg
- 152 lb = 68.946 kg
- 153 lb = 69.3996 kg
- 154 lb = 69.8532 kg
- 155 lb = 70.3068 kg
- 156 lb = 70.7604 kg
- 157 lb = 71.214 kg
- 158 lb = 71.6676 kg
- 159 lb = 72.1212 kg
- 160 lb = 72.5748 kg
- 161 lb = 73.0284 kg
- 162 lb = 73.482 kg
- 163 lb = 73.9356 kg
- 164 lb = 74.3891 kg
- 165 lb = 74.8427 kg
- 166 lb = 75.2963 kg
- 167 lb = 75.7499 kg
- 168 lb = 76.2035 kg
- 169 lb = 76.6571 kg
- 170 lb = 77.1107 kg
- 171 lb = 77.5643 kg
- 172 lb = 78.0179 kg
- 173 lb = 78.4715 kg
- 174 lb = 78.9251 kg
- 175 lb = 79.3787 kg
- 176 lb = 79.8323 kg
- 177 lb = 80.2858 kg
- 178 lb = 80.7394 kg
- 179 lb = 81.193 kg
- 180 lb = 81.6466 kg
- 181 lb = 82.1002 kg
- 182 lb = 82.5538 kg
- 183 lb = 83.0074 kg
- 184 lb = 83.461 kg
- 185 lb = 83.9146 kg
- 186 lb = 84.3682 kg
- 187 lb = 84.8218 kg
- 188 lb = 85.2754 kg
- 189 lb = 85.729 kg
- 190 lb = 86.1826 kg
- 191 lb = 86.6361 kg
- 192 lb = 87.0897 kg
- 193 lb = 87.5433 kg
- 194 lb = 87.9969 kg
- 195 lb = 88.4505 kg
- 196 lb = 88.9041 kg
- 197 lb = 89.3577 kg
- 198 lb = 89.8113 kg
- 199 lb = 90.2649 kg
- 200 lb = 90.7185 kg
- 205 lb = 92.9864 kg
- 210 lb = 95.2544 kg
- 215 lb = 97.5224 kg
- 220 lb = 99.7903 kg
- 225 lb = 102.0583 kg
- 230 lb = 104.3262 kg
- 235 lb = 106.5942 kg
- 240 lb = 108.8622 kg
- 245 lb = 111.1301 kg
- 250 lb = 113.3981 kg
- 255 lb = 115.6661 kg
- 260 lb = 117.934 kg
- 265 lb = 120.202 kg
- 270 lb = 122.4699 kg
- 275 lb = 124.7379 kg
- 280 lb = 127.0059 kg
- 285 lb = 129.2738 kg
- 290 lb = 131.5418 kg
- 295 lb = 133.8097 kg
- 300 lb = 136.0777 kg
- 305 lb = 138.3457 kg
- 310 lb = 140.6136 kg
- 315 lb = 142.8816 kg
- 320 lb = 145.1496 kg
- 325 lb = 147.4175 kg
- 330 lb = 149.6855 kg
- 335 lb = 151.9534 kg
- 340 lb = 154.2214 kg
- 345 lb = 156.4894 kg
- 350 lb = 158.7573 kg
- 355 lb = 161.0253 kg
- 360 lb = 163.2933 kg
- 365 lb = 165.5612 kg
- 370 lb = 167.8292 kg
- 375 lb = 170.0971 kg
- 380 lb = 172.3651 kg
- 385 lb = 174.6331 kg
- 390 lb = 176.901 kg
- 395 lb = 179.169 kg
- 400 lb = 181.4369 kg
- 405 lb = 183.7049 kg
- 410 lb = 185.9729 kg
- 415 lb = 188.2408 kg
- 420 lb = 190.5088 kg
- 425 lb = 192.7768 kg
- 430 lb = 195.0447 kg
- 435 lb = 197.3127 kg
- 440 lb = 199.5806 kg
- 445 lb = 201.8486 kg
- 450 lb = 204.1166 kg
- 455 lb = 206.3845 kg
- 460 lb = 208.6525 kg
- 465 lb = 210.9205 kg
- 470 lb = 213.1884 kg
- 475 lb = 215.4564 kg
- 480 lb = 217.7243 kg
- 485 lb = 219.9923 kg
- 490 lb = 222.2603 kg
- 495 lb = 224.5282 kg
- 500 lb = 226.7962 kg
- 510 lb = 231.3321 kg
- 520 lb = 235.868 kg
- 530 lb = 240.404 kg
- 540 lb = 244.9399 kg
- 550 lb = 249.4758 kg
- 560 lb = 254.0117 kg
- 570 lb = 258.5477 kg
- 580 lb = 263.0836 kg
- 590 lb = 267.6195 kg
- 600 lb = 272.1554 kg
- 610 lb = 276.6913 kg
- 620 lb = 281.2273 kg
- 630 lb = 285.7632 kg
- 640 lb = 290.2991 kg
- 650 lb = 294.835 kg
- 660 lb = 299.371 kg
- 670 lb = 303.9069 kg
- 680 lb = 308.4428 kg
- 690 lb = 312.9787 kg
- 700 lb = 317.5147 kg
- 710 lb = 322.0506 kg
- 720 lb = 326.5865 kg
- 730 lb = 331.1224 kg
- 740 lb = 335.6584 kg
- 750 lb = 340.1943 kg
- 760 lb = 344.7302 kg
- 770 lb = 349.2661 kg
- 780 lb = 353.802 kg
- 790 lb = 358.338 kg
- 800 lb = 362.8739 kg
- 810 lb = 367.4098 kg
- 820 lb = 371.9457 kg
- 830 lb = 376.4817 kg
- 840 lb = 381.0176 kg
- 850 lb = 385.5535 kg
- 860 lb = 390.0894 kg
- 870 lb = 394.6254 kg
- 880 lb = 399.1613 kg
- 890 lb = 403.6972 kg
- 900 lb = 408.2331 kg
- 910 lb = 412.7691 kg
- 920 lb = 417.305 kg
- 930 lb = 421.8409 kg
- 940 lb = 426.3768 kg
- 950 lb = 430.9128 kg
- 960 lb = 435.4487 kg
- 970 lb = 439.9846 kg
- 980 lb = 444.5205 kg
- 990 lb = 449.0564 kg
- 1,000 lb = 453.5924 kg
- 1,025 lb = 464.9322 kg
- 1,050 lb = 476.272 kg
- 1,075 lb = 487.6118 kg
- 1,100 lb = 498.9516 kg
- 1,125 lb = 510.2914 kg
- 1,150 lb = 521.6312 kg
- 1,175 lb = 532.971 kg
- 1,200 lb = 544.3108 kg
- 1,225 lb = 555.6507 kg
- 1,250 lb = 566.9905 kg
- 1,275 lb = 578.3303 kg
- 1,300 lb = 589.6701 kg
- 1,325 lb = 601.0099 kg
- 1,350 lb = 612.3497 kg
- 1,375 lb = 623.6895 kg
- 1,400 lb = 635.0293 kg
- 1,425 lb = 646.3691 kg
- 1,450 lb = 657.7089 kg
- 1,475 lb = 669.0487 kg
- 1,500 lb = 680.3886 kg
- 1,525 lb = 691.7284 kg
- 1,550 lb = 703.0682 kg
- 1,575 lb = 714.408 kg
- 1,600 lb = 725.7478 kg
- 1,625 lb = 737.0876 kg
- 1,650 lb = 748.4274 kg
- 1,675 lb = 759.7672 kg
- 1,700 lb = 771.107 kg
- 1,725 lb = 782.4468 kg
- 1,750 lb = 793.7866 kg
- 1,775 lb = 805.1265 kg
- 1,800 lb = 816.4663 kg
- 1,825 lb = 827.8061 kg
- 1,850 lb = 839.1459 kg
- 1,875 lb = 850.4857 kg
- 1,900 lb = 861.8255 kg
- 1,925 lb = 873.1653 kg
- 1,950 lb = 884.5051 kg
- 1,975 lb = 895.8449 kg
- 2,000 lb = 907.1847 kg
- 2,050 lb = 929.8644 kg
- 2,100 lb = 952.544 kg
- 2,150 lb = 975.2236 kg
- 2,200 lb = 997.9032 kg
- 2,250 lb = 1,020.5828 kg
- 2,300 lb = 1,043.2625 kg
- 2,350 lb = 1,065.9421 kg
- 2,400 lb = 1,088.6217 kg
- 2,450 lb = 1,111.3013 kg
- 2,500 lb = 1,133.9809 kg
- 2,550 lb = 1,156.6605 kg
- 2,600 lb = 1,179.3402 kg
- 2,650 lb = 1,202.0198 kg
- 2,700 lb = 1,224.6994 kg
- 2,750 lb = 1,247.379 kg
- 2,800 lb = 1,270.0586 kg
- 2,850 lb = 1,292.7383 kg
- 2,900 lb = 1,315.4179 kg
- 2,950 lb = 1,338.0975 kg
- 3,000 lb = 1,360.7771 kg
- 3,050 lb = 1,383.4567 kg
- 3,100 lb = 1,406.1363 kg
- 3,150 lb = 1,428.816 kg
- 3,200 lb = 1,451.4956 kg
- 3,250 lb = 1,474.1752 kg
- 3,300 lb = 1,496.8548 kg
- 3,350 lb = 1,519.5344 kg
- 3,400 lb = 1,542.2141 kg
- 3,450 lb = 1,564.8937 kg
- 3,500 lb = 1,587.5733 kg
- 3,550 lb = 1,610.2529 kg
- 3,600 lb = 1,632.9325 kg
- 3,650 lb = 1,655.6122 kg
- 3,700 lb = 1,678.2918 kg
- 3,750 lb = 1,700.9714 kg
- 3,800 lb = 1,723.651 kg
- 3,850 lb = 1,746.3306 kg
- 3,900 lb = 1,769.0102 kg
- 3,950 lb = 1,791.6899 kg
- 4,000 lb = 1,814.3695 kg
- 4,050 lb = 1,837.0491 kg
- 4,100 lb = 1,859.7287 kg
- 4,150 lb = 1,882.4083 kg
- 4,200 lb = 1,905.088 kg
- 4,250 lb = 1,927.7676 kg
- 4,300 lb = 1,950.4472 kg
- 4,350 lb = 1,973.1268 kg
- 4,400 lb = 1,995.8064 kg
- 4,450 lb = 2,018.486 kg
- 4,500 lb = 2,041.1657 kg
- 4,550 lb = 2,063.8453 kg
- 4,600 lb = 2,086.5249 kg
- 4,650 lb = 2,109.2045 kg
- 4,700 lb = 2,131.8841 kg
- 4,750 lb = 2,154.5638 kg
- 4,800 lb = 2,177.2434 kg
- 4,850 lb = 2,199.923 kg
- 4,900 lb = 2,222.6026 kg
- 4,950 lb = 2,245.2822 kg
- 5,000 lb = 2,267.9619 kg
- 5,100 lb = 2,313.3211 kg
- 5,200 lb = 2,358.6803 kg
- 5,300 lb = 2,404.0396 kg
- 5,400 lb = 2,449.3988 kg
- 5,500 lb = 2,494.758 kg
- 5,600 lb = 2,540.1173 kg
- 5,700 lb = 2,585.4765 kg
- 5,800 lb = 2,630.8357 kg
- 5,900 lb = 2,676.195 kg
- 6,000 lb = 2,721.5542 kg
- 6,100 lb = 2,766.9135 kg
- 6,200 lb = 2,812.2727 kg
- 6,300 lb = 2,857.6319 kg
- 6,400 lb = 2,902.9912 kg
- 6,500 lb = 2,948.3504 kg
- 6,600 lb = 2,993.7096 kg
- 6,700 lb = 3,039.0689 kg
- 6,800 lb = 3,084.4281 kg
- 6,900 lb = 3,129.7874 kg
- 7,000 lb = 3,175.1466 kg
- 7,100 lb = 3,220.5058 kg
- 7,200 lb = 3,265.8651 kg
- 7,300 lb = 3,311.2243 kg
- 7,400 lb = 3,356.5835 kg
- 7,500 lb = 3,401.9428 kg
- 7,600 lb = 3,447.302 kg
- 7,700 lb = 3,492.6612 kg
- 7,800 lb = 3,538.0205 kg
- 7,900 lb = 3,583.3797 kg
- 8,000 lb = 3,628.739 kg
- 8,100 lb = 3,674.0982 kg
- 8,200 lb = 3,719.4574 kg
- 8,300 lb = 3,764.8167 kg
- 8,400 lb = 3,810.1759 kg
- 8,500 lb = 3,855.5351 kg
- 8,600 lb = 3,900.8944 kg
- 8,700 lb = 3,946.2536 kg
- 8,800 lb = 3,991.6129 kg
- 8,900 lb = 4,036.9721 kg
- 9,000 lb = 4,082.3313 kg
- 9,100 lb = 4,127.6906 kg
- 9,200 lb = 4,173.0498 kg
- 9,300 lb = 4,218.409 kg
- 9,400 lb = 4,263.7683 kg
- 9,500 lb = 4,309.1275 kg
- 9,600 lb = 4,354.4868 kg
- 9,700 lb = 4,399.846 kg
- 9,800 lb = 4,445.2052 kg
- 9,900 lb = 4,490.5645 kg
- 10,000 lb = 4,535.9237 kg
よく使う値、換算済み
各行はその値を入れた状態で換算器を開きます。
1 lb = 0.45359237 kg という値は 1959 年の国際ポンド・ヤード協定で定められたもので、丸めた近似値ではなく定義そのものです。 算出方法と出典.
よくある質問
1ポンドは何キログラムですか？
1ポンドは 0.45359237 kg です。これは近似ではなく定義値で、1959 年の協定がポンドをキログラムで定めました。
米国のポンドと英国のポンドは同じですか？
質量については 1959 年以降どちらも同じ常用ポンドです。異なるのは他の単位で、英トンと米トンは等しくなく、英パイントは米パイントより大きくなります。
150ポンドはキログラムとストーンでいくつですか？
150 ポンドは 68.04 kg、ストーンでは 10 ストーン 10 ポンドです。1 ストーンは 14 ポンドなので、英国では体重をこの形で言うことが多くあります。
Zentner と 100 キロの単位は同じですか？
違います。「百なにがし」という発想をめぐって四つの単位が競合しています。ドイツの Zentner は 50 kg、メートル法のクインタルは 100 kg、英国のハンドレッドウェイトは 50.80 kg、米国のそれは 45.36 kg です。ですから農産物の百単位あたりの価格は、ライン川の両岸でも大西洋の両岸でも別のものを指します。
金の重さに別のオンスを使うのはなぜですか？
貴金属は日常のアヴォアデュポア系とは別のトロイ系で量るからです。トロイオンスは 31.103 g、ふつうのオンスは 28.35 g、トロイポンドは 373.24 g に対して常用ポンドは 453.59 g です。「1 オンスあたり」と示される金相場はつねにトロイオンスを指し、スーパーのオンスとは 10 % ずれます。