センチメートルをインチに換算する

1センチメートルは0.3937インチです。センチの値を 2.54 で割るか 0.3937 を掛けます。身長 180 cm は 70.87 インチ、つまり 5 フィート 11 インチにあたります。

=

センチメートルをインチに換算するには？

センチメートルの数を 2.54 で割ります。これは丸めた値ではなく正確な関係で、インチは 1959 年から 2.54 cm ちょうどと定められています。

インチ = センチメートル × 0.3937センチメートル = インチ × 2.54

この二つの単位が使われる場所

センチメートルは、インチが支配しないすべての場所で、衣類のサイズ、身体の寸法、紙の判型を測る単位です。

よく使う長さのセンチメートルとインチ

1 cm0.39 in
2 cm0.79 in
5 cm1.97 in
10 cm3.94 in
15 cm5.91 in
20 cm7.87 in
30 cm11.81 in
50 cm19.69 in
100 cm39.37 in
180 cm70.87 in
200 cm78.74 in
すべての値を表示
  • 1 cm = 0.3937 in
  • 2 cm = 0.7874 in
  • 3 cm = 1.1811 in
  • 4 cm = 1.5748 in
  • 5 cm = 1.9685 in
  • 6 cm = 2.3622 in
  • 7 cm = 2.7559 in
  • 8 cm = 3.1496 in
  • 9 cm = 3.5433 in
  • 10 cm = 3.937 in
  • 11 cm = 4.3307 in
  • 12 cm = 4.7244 in
  • 13 cm = 5.1181 in
  • 14 cm = 5.5118 in
  • 15 cm = 5.9055 in
  • 16 cm = 6.2992 in
  • 17 cm = 6.6929 in
  • 18 cm = 7.0866 in
  • 19 cm = 7.4803 in
  • 20 cm = 7.874 in
  • 21 cm = 8.2677 in
  • 22 cm = 8.6614 in
  • 23 cm = 9.0551 in
  • 24 cm = 9.4488 in
  • 25 cm = 9.8425 in
  • 26 cm = 10.2362 in
  • 27 cm = 10.6299 in
  • 28 cm = 11.0236 in
  • 29 cm = 11.4173 in
  • 30 cm = 11.811 in
  • 31 cm = 12.2047 in
  • 32 cm = 12.5984 in
  • 33 cm = 12.9921 in
  • 34 cm = 13.3858 in
  • 35 cm = 13.7795 in
  • 36 cm = 14.1732 in
  • 37 cm = 14.5669 in
  • 38 cm = 14.9606 in
  • 39 cm = 15.3543 in
  • 40 cm = 15.748 in
  • 41 cm = 16.1417 in
  • 42 cm = 16.5354 in
  • 43 cm = 16.9291 in
  • 44 cm = 17.3228 in
  • 45 cm = 17.7165 in
  • 46 cm = 18.1102 in
  • 47 cm = 18.5039 in
  • 48 cm = 18.8976 in
  • 49 cm = 19.2913 in
  • 50 cm = 19.685 in
  • 51 cm = 20.0787 in
  • 52 cm = 20.4724 in
  • 53 cm = 20.8661 in
  • 54 cm = 21.2598 in
  • 55 cm = 21.6535 in
  • 56 cm = 22.0472 in
  • 57 cm = 22.4409 in
  • 58 cm = 22.8346 in
  • 59 cm = 23.2283 in
  • 60 cm = 23.622 in
  • 61 cm = 24.0157 in
  • 62 cm = 24.4094 in
  • 63 cm = 24.8031 in
  • 64 cm = 25.1969 in
  • 65 cm = 25.5906 in
  • 66 cm = 25.9843 in
  • 67 cm = 26.378 in
  • 68 cm = 26.7717 in
  • 69 cm = 27.1654 in
  • 70 cm = 27.5591 in
  • 71 cm = 27.9528 in
  • 72 cm = 28.3465 in
  • 73 cm = 28.7402 in
  • 74 cm = 29.1339 in
  • 75 cm = 29.5276 in
  • 76 cm = 29.9213 in
  • 77 cm = 30.315 in
  • 78 cm = 30.7087 in
  • 79 cm = 31.1024 in
  • 80 cm = 31.4961 in
  • 81 cm = 31.8898 in
  • 82 cm = 32.2835 in
  • 83 cm = 32.6772 in
  • 84 cm = 33.0709 in
  • 85 cm = 33.4646 in
  • 86 cm = 33.8583 in
  • 87 cm = 34.252 in
  • 88 cm = 34.6457 in
  • 89 cm = 35.0394 in
  • 90 cm = 35.4331 in
  • 91 cm = 35.8268 in
  • 92 cm = 36.2205 in
  • 93 cm = 36.6142 in
  • 94 cm = 37.0079 in
  • 95 cm = 37.4016 in
  • 96 cm = 37.7953 in
  • 97 cm = 38.189 in
  • 98 cm = 38.5827 in
  • 99 cm = 38.9764 in
  • 100 cm = 39.3701 in
  • 101 cm = 39.7638 in
  • 102 cm = 40.1575 in
  • 103 cm = 40.5512 in
  • 104 cm = 40.9449 in
  • 105 cm = 41.3386 in
  • 106 cm = 41.7323 in
  • 107 cm = 42.126 in
  • 108 cm = 42.5197 in
  • 109 cm = 42.9134 in
  • 110 cm = 43.3071 in
  • 111 cm = 43.7008 in
  • 112 cm = 44.0945 in
  • 113 cm = 44.4882 in
  • 114 cm = 44.8819 in
  • 115 cm = 45.2756 in
  • 116 cm = 45.6693 in
  • 117 cm = 46.063 in
  • 118 cm = 46.4567 in
  • 119 cm = 46.8504 in
  • 120 cm = 47.2441 in
  • 121 cm = 47.6378 in
  • 122 cm = 48.0315 in
  • 123 cm = 48.4252 in
  • 124 cm = 48.8189 in
  • 125 cm = 49.2126 in
  • 126 cm = 49.6063 in
  • 127 cm = 50 in
  • 128 cm = 50.3937 in
  • 129 cm = 50.7874 in
  • 130 cm = 51.1811 in
  • 131 cm = 51.5748 in
  • 132 cm = 51.9685 in
  • 133 cm = 52.3622 in
  • 134 cm = 52.7559 in
  • 135 cm = 53.1496 in
  • 136 cm = 53.5433 in
  • 137 cm = 53.937 in
  • 138 cm = 54.3307 in
  • 139 cm = 54.7244 in
  • 140 cm = 55.1181 in
  • 141 cm = 55.5118 in
  • 142 cm = 55.9055 in
  • 143 cm = 56.2992 in
  • 144 cm = 56.6929 in
  • 145 cm = 57.0866 in
  • 146 cm = 57.4803 in
  • 147 cm = 57.874 in
  • 148 cm = 58.2677 in
  • 149 cm = 58.6614 in
  • 150 cm = 59.0551 in
  • 151 cm = 59.4488 in
  • 152 cm = 59.8425 in
  • 153 cm = 60.2362 in
  • 154 cm = 60.6299 in
  • 155 cm = 61.0236 in
  • 156 cm = 61.4173 in
  • 157 cm = 61.811 in
  • 158 cm = 62.2047 in
  • 159 cm = 62.5984 in
  • 160 cm = 62.9921 in
  • 161 cm = 63.3858 in
  • 162 cm = 63.7795 in
  • 163 cm = 64.1732 in
  • 164 cm = 64.5669 in
  • 165 cm = 64.9606 in
  • 166 cm = 65.3543 in
  • 167 cm = 65.748 in
  • 168 cm = 66.1417 in
  • 169 cm = 66.5354 in
  • 170 cm = 66.9291 in
  • 171 cm = 67.3228 in
  • 172 cm = 67.7165 in
  • 173 cm = 68.1102 in
  • 174 cm = 68.5039 in
  • 175 cm = 68.8976 in
  • 176 cm = 69.2913 in
  • 177 cm = 69.685 in
  • 178 cm = 70.0787 in
  • 179 cm = 70.4724 in
  • 180 cm = 70.8661 in
  • 181 cm = 71.2598 in
  • 182 cm = 71.6535 in
  • 183 cm = 72.0472 in
  • 184 cm = 72.4409 in
  • 185 cm = 72.8346 in
  • 186 cm = 73.2283 in
  • 187 cm = 73.622 in
  • 188 cm = 74.0157 in
  • 189 cm = 74.4094 in
  • 190 cm = 74.8031 in
  • 191 cm = 75.1969 in
  • 192 cm = 75.5906 in
  • 193 cm = 75.9843 in
  • 194 cm = 76.378 in
  • 195 cm = 76.7717 in
  • 196 cm = 77.1654 in
  • 197 cm = 77.5591 in
  • 198 cm = 77.9528 in
  • 199 cm = 78.3465 in
  • 200 cm = 78.7402 in
  • 205 cm = 80.7087 in
  • 210 cm = 82.6772 in
  • 215 cm = 84.6457 in
  • 220 cm = 86.6142 in
  • 225 cm = 88.5827 in
  • 230 cm = 90.5512 in
  • 235 cm = 92.5197 in
  • 240 cm = 94.4882 in
  • 245 cm = 96.4567 in
  • 250 cm = 98.4252 in
  • 255 cm = 100.3937 in
  • 260 cm = 102.3622 in
  • 265 cm = 104.3307 in
  • 270 cm = 106.2992 in
  • 275 cm = 108.2677 in
  • 280 cm = 110.2362 in
  • 285 cm = 112.2047 in
  • 290 cm = 114.1732 in
  • 295 cm = 116.1417 in
  • 300 cm = 118.1102 in
  • 305 cm = 120.0787 in
  • 310 cm = 122.0472 in
  • 315 cm = 124.0157 in
  • 320 cm = 125.9843 in
  • 325 cm = 127.9528 in
  • 330 cm = 129.9213 in
  • 335 cm = 131.8898 in
  • 340 cm = 133.8583 in
  • 345 cm = 135.8268 in
  • 350 cm = 137.7953 in
  • 355 cm = 139.7638 in
  • 360 cm = 141.7323 in
  • 365 cm = 143.7008 in
  • 370 cm = 145.6693 in
  • 375 cm = 147.6378 in
  • 380 cm = 149.6063 in
  • 385 cm = 151.5748 in
  • 390 cm = 153.5433 in
  • 395 cm = 155.5118 in
  • 400 cm = 157.4803 in
  • 405 cm = 159.4488 in
  • 410 cm = 161.4173 in
  • 415 cm = 163.3858 in
  • 420 cm = 165.3543 in
  • 425 cm = 167.3228 in
  • 430 cm = 169.2913 in
  • 435 cm = 171.2598 in
  • 440 cm = 173.2283 in
  • 445 cm = 175.1969 in
  • 450 cm = 177.1654 in
  • 455 cm = 179.1339 in
  • 460 cm = 181.1024 in
  • 465 cm = 183.0709 in
  • 470 cm = 185.0394 in
  • 475 cm = 187.0079 in
  • 480 cm = 188.9764 in
  • 485 cm = 190.9449 in
  • 490 cm = 192.9134 in
  • 495 cm = 194.8819 in
  • 500 cm = 196.8504 in
  • 510 cm = 200.7874 in
  • 520 cm = 204.7244 in
  • 530 cm = 208.6614 in
  • 540 cm = 212.5984 in
  • 550 cm = 216.5354 in
  • 560 cm = 220.4724 in
  • 570 cm = 224.4094 in
  • 580 cm = 228.3465 in
  • 590 cm = 232.2835 in
  • 600 cm = 236.2205 in
  • 610 cm = 240.1575 in
  • 620 cm = 244.0945 in
  • 630 cm = 248.0315 in
  • 640 cm = 251.9685 in
  • 650 cm = 255.9055 in
  • 660 cm = 259.8425 in
  • 670 cm = 263.7795 in
  • 680 cm = 267.7165 in
  • 690 cm = 271.6535 in
  • 700 cm = 275.5906 in
  • 710 cm = 279.5276 in
  • 720 cm = 283.4646 in
  • 730 cm = 287.4016 in
  • 740 cm = 291.3386 in
  • 750 cm = 295.2756 in
  • 760 cm = 299.2126 in
  • 770 cm = 303.1496 in
  • 780 cm = 307.0866 in
  • 790 cm = 311.0236 in
  • 800 cm = 314.9606 in
  • 810 cm = 318.8976 in
  • 820 cm = 322.8346 in
  • 830 cm = 326.7717 in
  • 840 cm = 330.7087 in
  • 850 cm = 334.6457 in
  • 860 cm = 338.5827 in
  • 870 cm = 342.5197 in
  • 880 cm = 346.4567 in
  • 890 cm = 350.3937 in
  • 900 cm = 354.3307 in
  • 910 cm = 358.2677 in
  • 920 cm = 362.2047 in
  • 930 cm = 366.1417 in
  • 940 cm = 370.0787 in
  • 950 cm = 374.0157 in
  • 960 cm = 377.9528 in
  • 970 cm = 381.8898 in
  • 980 cm = 385.8268 in
  • 990 cm = 389.7638 in
  • 1,000 cm = 393.7008 in
  • 1,025 cm = 403.5433 in
  • 1,050 cm = 413.3858 in
  • 1,075 cm = 423.2283 in
  • 1,100 cm = 433.0709 in
  • 1,125 cm = 442.9134 in
  • 1,150 cm = 452.7559 in
  • 1,175 cm = 462.5984 in
  • 1,200 cm = 472.4409 in
  • 1,225 cm = 482.2835 in
  • 1,250 cm = 492.126 in
  • 1,275 cm = 501.9685 in
  • 1,300 cm = 511.811 in
  • 1,325 cm = 521.6535 in
  • 1,350 cm = 531.4961 in
  • 1,375 cm = 541.3386 in
  • 1,400 cm = 551.1811 in
  • 1,425 cm = 561.0236 in
  • 1,450 cm = 570.8661 in
  • 1,475 cm = 580.7087 in
  • 1,500 cm = 590.5512 in
  • 1,525 cm = 600.3937 in
  • 1,550 cm = 610.2362 in
  • 1,575 cm = 620.0787 in
  • 1,600 cm = 629.9213 in
  • 1,625 cm = 639.7638 in
  • 1,650 cm = 649.6063 in
  • 1,675 cm = 659.4488 in
  • 1,700 cm = 669.2913 in
  • 1,725 cm = 679.1339 in
  • 1,750 cm = 688.9764 in
  • 1,775 cm = 698.8189 in
  • 1,800 cm = 708.6614 in
  • 1,825 cm = 718.5039 in
  • 1,850 cm = 728.3465 in
  • 1,875 cm = 738.189 in
  • 1,900 cm = 748.0315 in
  • 1,925 cm = 757.874 in
  • 1,950 cm = 767.7165 in
  • 1,975 cm = 777.5591 in
  • 2,000 cm = 787.4016 in
  • 2,050 cm = 807.0866 in
  • 2,100 cm = 826.7717 in
  • 2,150 cm = 846.4567 in
  • 2,200 cm = 866.1417 in
  • 2,250 cm = 885.8268 in
  • 2,300 cm = 905.5118 in
  • 2,350 cm = 925.1969 in
  • 2,400 cm = 944.8819 in
  • 2,450 cm = 964.5669 in
  • 2,500 cm = 984.252 in
  • 2,550 cm = 1,003.937 in
  • 2,600 cm = 1,023.622 in
  • 2,650 cm = 1,043.3071 in
  • 2,700 cm = 1,062.9921 in
  • 2,750 cm = 1,082.6772 in
  • 2,800 cm = 1,102.3622 in
  • 2,850 cm = 1,122.0472 in
  • 2,900 cm = 1,141.7323 in
  • 2,950 cm = 1,161.4173 in
  • 3,000 cm = 1,181.1024 in
  • 3,050 cm = 1,200.7874 in
  • 3,100 cm = 1,220.4724 in
  • 3,150 cm = 1,240.1575 in
  • 3,200 cm = 1,259.8425 in
  • 3,250 cm = 1,279.5276 in
  • 3,300 cm = 1,299.2126 in
  • 3,350 cm = 1,318.8976 in
  • 3,400 cm = 1,338.5827 in
  • 3,450 cm = 1,358.2677 in
  • 3,500 cm = 1,377.9528 in
  • 3,550 cm = 1,397.6378 in
  • 3,600 cm = 1,417.3228 in
  • 3,650 cm = 1,437.0079 in
  • 3,700 cm = 1,456.6929 in
  • 3,750 cm = 1,476.378 in
  • 3,800 cm = 1,496.063 in
  • 3,850 cm = 1,515.748 in
  • 3,900 cm = 1,535.4331 in
  • 3,950 cm = 1,555.1181 in
  • 4,000 cm = 1,574.8031 in
  • 4,050 cm = 1,594.4882 in
  • 4,100 cm = 1,614.1732 in
  • 4,150 cm = 1,633.8583 in
  • 4,200 cm = 1,653.5433 in
  • 4,250 cm = 1,673.2283 in
  • 4,300 cm = 1,692.9134 in
  • 4,350 cm = 1,712.5984 in
  • 4,400 cm = 1,732.2835 in
  • 4,450 cm = 1,751.9685 in
  • 4,500 cm = 1,771.6535 in
  • 4,550 cm = 1,791.3386 in
  • 4,600 cm = 1,811.0236 in
  • 4,650 cm = 1,830.7087 in
  • 4,700 cm = 1,850.3937 in
  • 4,750 cm = 1,870.0787 in
  • 4,800 cm = 1,889.7638 in
  • 4,850 cm = 1,909.4488 in
  • 4,900 cm = 1,929.1339 in
  • 4,950 cm = 1,948.8189 in
  • 5,000 cm = 1,968.5039 in
  • 5,100 cm = 2,007.874 in
  • 5,200 cm = 2,047.2441 in
  • 5,300 cm = 2,086.6142 in
  • 5,400 cm = 2,125.9843 in
  • 5,500 cm = 2,165.3543 in
  • 5,600 cm = 2,204.7244 in
  • 5,700 cm = 2,244.0945 in
  • 5,800 cm = 2,283.4646 in
  • 5,900 cm = 2,322.8346 in
  • 6,000 cm = 2,362.2047 in
  • 6,100 cm = 2,401.5748 in
  • 6,200 cm = 2,440.9449 in
  • 6,300 cm = 2,480.315 in
  • 6,400 cm = 2,519.685 in
  • 6,500 cm = 2,559.0551 in
  • 6,600 cm = 2,598.4252 in
  • 6,700 cm = 2,637.7953 in
  • 6,800 cm = 2,677.1654 in
  • 6,900 cm = 2,716.5354 in
  • 7,000 cm = 2,755.9055 in
  • 7,100 cm = 2,795.2756 in
  • 7,200 cm = 2,834.6457 in
  • 7,300 cm = 2,874.0157 in
  • 7,400 cm = 2,913.3858 in
  • 7,500 cm = 2,952.7559 in
  • 7,600 cm = 2,992.126 in
  • 7,700 cm = 3,031.4961 in
  • 7,800 cm = 3,070.8661 in
  • 7,900 cm = 3,110.2362 in
  • 8,000 cm = 3,149.6063 in
  • 8,100 cm = 3,188.9764 in
  • 8,200 cm = 3,228.3465 in
  • 8,300 cm = 3,267.7165 in
  • 8,400 cm = 3,307.0866 in
  • 8,500 cm = 3,346.4567 in
  • 8,600 cm = 3,385.8268 in
  • 8,700 cm = 3,425.1969 in
  • 8,800 cm = 3,464.5669 in
  • 8,900 cm = 3,503.937 in
  • 9,000 cm = 3,543.3071 in
  • 9,100 cm = 3,582.6772 in
  • 9,200 cm = 3,622.0472 in
  • 9,300 cm = 3,661.4173 in
  • 9,400 cm = 3,700.7874 in
  • 9,500 cm = 3,740.1575 in
  • 9,600 cm = 3,779.5276 in
  • 9,700 cm = 3,818.8976 in
  • 9,800 cm = 3,858.2677 in
  • 9,900 cm = 3,897.6378 in
  • 10,000 cm = 3,937.0079 in

国際インチは 1959 年のヤード・ポンド協定により正確に 0.0254 メートルです。逆数の 0.3937007874 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センチメートルは何インチですか？

1センチメートルは 0.3937 インチです。逆の関係のほうが覚えやすく、1 インチはちょうど 2.54 cm です。

電卓なしで換算するには？

2.54 の代わりに 2.5 で割ります。結果は 1.6 % ほど大きくなります。30 cm なら 12 インチと出ますが正確には 11.81 インチです。おおよその大きさを掴むには十分でも、裁断には向きません。

画面の対角線やホイールがいまだにインチなのはなぜですか？

業界規格がメートル法への移行より前にインチで固まり、変更する費用のほうが大きいためです。だから、ほかをすべてセンチで測る場所でも 27 インチのモニターと呼ばれます。

1 インチはつねに 2.54 cm でしたか？

違います。1959 年まで、米国のインチは 2.540005 cm、英国のインチは 2.539998 cm でした。差は 300 万分の 1 で、大工仕事には無関係でも光学や航空にはやっかいでした。ヤード・ポンドに関する国際協定がインチを厳密に 2.54 cm と定め、以後その値が使われています。

画面がインチや dpi で語られるのはなぜですか？

計算機が、何世紀もインチで数えてきた印刷の慣習をそのまま受け継いだからです。1 インチあたりのドット数は画像の細かさを表し、ポイントで示す文字の大きさは 1 インチの 72 分の 1 にあたります。96 dpi の画面では 1 センチメートルが 37.8 ピクセルとなり、この数字はスタイルシートにも顔を出します。

1インチはどれくらいですか。

ちょうど2.54 cmです。1959年の国際協定によります。丸めた数ではなく定義であり、センチメートルに合わせられたのはインチのほうで、逆ではありません。

関連する変換

インチをセンチメートルに換算する メートルをフィートに キロメートルをマイルに キログラムをポンドに 長さ 里 デシメートル フィートをメートルに換算する マイルをキロメートルに換算する