オンスをグラムに換算するには？
オンスの数に 28.35 を掛けます。ざっくり見積もるなら 1 オンスを 30 グラムと考えます。誤差は約 6 % で、香辛料には十分ですが製菓には向きません。
グラム = オンス × 28.3495オンス = グラム ÷ 28.3495
この二つの単位が使われる場所
グラムは食品表示とレシピの単位であり、100 グラムあたりの成分表示や郵便料金がこの単位で読まれます。
レシピでよく使う重さのオンスとグラム
| 0.25 oz（ドライイースト1袋） | 7.09 g |
| 0.5 oz（バター大さじ1） | 14.17 g |
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz（1/4ポンド） | 113.40 g |
| 6 oz | 170.10 g |
| 8 oz（1/2ポンド） | 226.80 g |
| 12 oz | 340.19 g |
| 16 oz（1ポンド） | 453.59 g |
| 32 oz | 907.18 g |
すべての値を表示
- 1 oz = 28.35 g
- 2 oz = 56.7 g
- 3 oz = 85.05 g
- 4 oz = 113.4 g
- 5 oz = 141.75 g
- 6 oz = 170.1 g
- 7 oz = 198.45 g
- 8 oz = 226.8 g
- 9 oz = 255.15 g
- 10 oz = 283.5 g
- 11 oz = 311.84 g
- 12 oz = 340.19 g
- 13 oz = 368.54 g
- 14 oz = 396.89 g
- 15 oz = 425.24 g
- 16 oz = 453.59 g
- 17 oz = 481.94 g
- 18 oz = 510.29 g
- 19 oz = 538.64 g
- 20 oz = 566.99 g
- 21 oz = 595.34 g
- 22 oz = 623.69 g
- 23 oz = 652.04 g
- 24 oz = 680.39 g
- 25 oz = 708.74 g
- 26 oz = 737.09 g
- 27 oz = 765.44 g
- 28 oz = 793.79 g
- 29 oz = 822.14 g
- 30 oz = 850.49 g
- 31 oz = 878.84 g
- 32 oz = 907.18 g
- 33 oz = 935.53 g
- 34 oz = 963.88 g
- 35 oz = 992.23 g
- 36 oz = 1,020.58 g
- 37 oz = 1,048.93 g
- 38 oz = 1,077.28 g
- 39 oz = 1,105.63 g
- 40 oz = 1,133.98 g
- 41 oz = 1,162.33 g
- 42 oz = 1,190.68 g
- 43 oz = 1,219.03 g
- 44 oz = 1,247.38 g
- 45 oz = 1,275.73 g
- 46 oz = 1,304.08 g
- 47 oz = 1,332.43 g
- 48 oz = 1,360.78 g
- 49 oz = 1,389.13 g
- 50 oz = 1,417.48 g
- 51 oz = 1,445.83 g
- 52 oz = 1,474.18 g
- 53 oz = 1,502.52 g
- 54 oz = 1,530.87 g
- 55 oz = 1,559.22 g
- 56 oz = 1,587.57 g
- 57 oz = 1,615.92 g
- 58 oz = 1,644.27 g
- 59 oz = 1,672.62 g
- 60 oz = 1,700.97 g
- 61 oz = 1,729.32 g
- 62 oz = 1,757.67 g
- 63 oz = 1,786.02 g
- 64 oz = 1,814.37 g
- 65 oz = 1,842.72 g
- 66 oz = 1,871.07 g
- 67 oz = 1,899.42 g
- 68 oz = 1,927.77 g
- 69 oz = 1,956.12 g
- 70 oz = 1,984.47 g
- 71 oz = 2,012.82 g
- 72 oz = 2,041.17 g
- 73 oz = 2,069.52 g
- 74 oz = 2,097.86 g
- 75 oz = 2,126.21 g
- 76 oz = 2,154.56 g
- 77 oz = 2,182.91 g
- 78 oz = 2,211.26 g
- 79 oz = 2,239.61 g
- 80 oz = 2,267.96 g
- 81 oz = 2,296.31 g
- 82 oz = 2,324.66 g
- 83 oz = 2,353.01 g
- 84 oz = 2,381.36 g
- 85 oz = 2,409.71 g
- 86 oz = 2,438.06 g
- 87 oz = 2,466.41 g
- 88 oz = 2,494.76 g
- 89 oz = 2,523.11 g
- 90 oz = 2,551.46 g
- 91 oz = 2,579.81 g
- 92 oz = 2,608.16 g
- 93 oz = 2,636.51 g
- 94 oz = 2,664.86 g
- 95 oz = 2,693.2 g
- 96 oz = 2,721.55 g
- 97 oz = 2,749.9 g
- 98 oz = 2,778.25 g
- 99 oz = 2,806.6 g
- 100 oz = 2,834.95 g
- 101 oz = 2,863.3 g
- 102 oz = 2,891.65 g
- 103 oz = 2,920 g
- 104 oz = 2,948.35 g
- 105 oz = 2,976.7 g
- 106 oz = 3,005.05 g
- 107 oz = 3,033.4 g
- 108 oz = 3,061.75 g
- 109 oz = 3,090.1 g
- 110 oz = 3,118.45 g
- 111 oz = 3,146.8 g
- 112 oz = 3,175.15 g
- 113 oz = 3,203.5 g
- 114 oz = 3,231.85 g
- 115 oz = 3,260.2 g
- 116 oz = 3,288.54 g
- 117 oz = 3,316.89 g
- 118 oz = 3,345.24 g
- 119 oz = 3,373.59 g
- 120 oz = 3,401.94 g
- 121 oz = 3,430.29 g
- 122 oz = 3,458.64 g
- 123 oz = 3,486.99 g
- 124 oz = 3,515.34 g
- 125 oz = 3,543.69 g
- 126 oz = 3,572.04 g
- 127 oz = 3,600.39 g
- 128 oz = 3,628.74 g
- 129 oz = 3,657.09 g
- 130 oz = 3,685.44 g
- 131 oz = 3,713.79 g
- 132 oz = 3,742.14 g
- 133 oz = 3,770.49 g
- 134 oz = 3,798.84 g
- 135 oz = 3,827.19 g
- 136 oz = 3,855.54 g
- 137 oz = 3,883.88 g
- 138 oz = 3,912.23 g
- 139 oz = 3,940.58 g
- 140 oz = 3,968.93 g
- 141 oz = 3,997.28 g
- 142 oz = 4,025.63 g
- 143 oz = 4,053.98 g
- 144 oz = 4,082.33 g
- 145 oz = 4,110.68 g
- 146 oz = 4,139.03 g
- 147 oz = 4,167.38 g
- 148 oz = 4,195.73 g
- 149 oz = 4,224.08 g
- 150 oz = 4,252.43 g
- 151 oz = 4,280.78 g
- 152 oz = 4,309.13 g
- 153 oz = 4,337.48 g
- 154 oz = 4,365.83 g
- 155 oz = 4,394.18 g
- 156 oz = 4,422.53 g
- 157 oz = 4,450.88 g
- 158 oz = 4,479.22 g
- 159 oz = 4,507.57 g
- 160 oz = 4,535.92 g
- 161 oz = 4,564.27 g
- 162 oz = 4,592.62 g
- 163 oz = 4,620.97 g
- 164 oz = 4,649.32 g
- 165 oz = 4,677.67 g
- 166 oz = 4,706.02 g
- 167 oz = 4,734.37 g
- 168 oz = 4,762.72 g
- 169 oz = 4,791.07 g
- 170 oz = 4,819.42 g
- 171 oz = 4,847.77 g
- 172 oz = 4,876.12 g
- 173 oz = 4,904.47 g
- 174 oz = 4,932.82 g
- 175 oz = 4,961.17 g
- 176 oz = 4,989.52 g
- 177 oz = 5,017.87 g
- 178 oz = 5,046.22 g
- 179 oz = 5,074.56 g
- 180 oz = 5,102.91 g
- 181 oz = 5,131.26 g
- 182 oz = 5,159.61 g
- 183 oz = 5,187.96 g
- 184 oz = 5,216.31 g
- 185 oz = 5,244.66 g
- 186 oz = 5,273.01 g
- 187 oz = 5,301.36 g
- 188 oz = 5,329.71 g
- 189 oz = 5,358.06 g
- 190 oz = 5,386.41 g
- 191 oz = 5,414.76 g
- 192 oz = 5,443.11 g
- 193 oz = 5,471.46 g
- 194 oz = 5,499.81 g
- 195 oz = 5,528.16 g
- 196 oz = 5,556.51 g
- 197 oz = 5,584.86 g
- 198 oz = 5,613.21 g
- 199 oz = 5,641.56 g
- 200 oz = 5,669.9 g
- 205 oz = 5,811.65 g
- 210 oz = 5,953.4 g
- 215 oz = 6,095.15 g
- 220 oz = 6,236.9 g
- 225 oz = 6,378.64 g
- 230 oz = 6,520.39 g
- 235 oz = 6,662.14 g
- 240 oz = 6,803.89 g
- 245 oz = 6,945.63 g
- 250 oz = 7,087.38 g
- 255 oz = 7,229.13 g
- 260 oz = 7,370.88 g
- 265 oz = 7,512.62 g
- 270 oz = 7,654.37 g
- 275 oz = 7,796.12 g
- 280 oz = 7,937.87 g
- 285 oz = 8,079.61 g
- 290 oz = 8,221.36 g
- 295 oz = 8,363.11 g
- 300 oz = 8,504.86 g
- 305 oz = 8,646.6 g
- 310 oz = 8,788.35 g
- 315 oz = 8,930.1 g
- 320 oz = 9,071.85 g
- 325 oz = 9,213.6 g
- 330 oz = 9,355.34 g
- 335 oz = 9,497.09 g
- 340 oz = 9,638.84 g
- 345 oz = 9,780.59 g
- 350 oz = 9,922.33 g
- 355 oz = 10,064.08 g
- 360 oz = 10,205.83 g
- 365 oz = 10,347.58 g
- 370 oz = 10,489.32 g
- 375 oz = 10,631.07 g
- 380 oz = 10,772.82 g
- 385 oz = 10,914.57 g
- 390 oz = 11,056.31 g
- 395 oz = 11,198.06 g
- 400 oz = 11,339.81 g
- 405 oz = 11,481.56 g
- 410 oz = 11,623.3 g
- 415 oz = 11,765.05 g
- 420 oz = 11,906.8 g
- 425 oz = 12,048.55 g
- 430 oz = 12,190.29 g
- 435 oz = 12,332.04 g
- 440 oz = 12,473.79 g
- 445 oz = 12,615.54 g
- 450 oz = 12,757.29 g
- 455 oz = 12,899.03 g
- 460 oz = 13,040.78 g
- 465 oz = 13,182.53 g
- 470 oz = 13,324.28 g
- 475 oz = 13,466.02 g
- 480 oz = 13,607.77 g
- 485 oz = 13,749.52 g
- 490 oz = 13,891.27 g
- 495 oz = 14,033.01 g
- 500 oz = 14,174.76 g
- 510 oz = 14,458.26 g
- 520 oz = 14,741.75 g
- 530 oz = 15,025.25 g
- 540 oz = 15,308.74 g
- 550 oz = 15,592.24 g
- 560 oz = 15,875.73 g
- 570 oz = 16,159.23 g
- 580 oz = 16,442.72 g
- 590 oz = 16,726.22 g
- 600 oz = 17,009.71 g
- 610 oz = 17,293.21 g
- 620 oz = 17,576.7 g
- 630 oz = 17,860.2 g
- 640 oz = 18,143.69 g
- 650 oz = 18,427.19 g
- 660 oz = 18,710.69 g
- 670 oz = 18,994.18 g
- 680 oz = 19,277.68 g
- 690 oz = 19,561.17 g
- 700 oz = 19,844.67 g
- 710 oz = 20,128.16 g
- 720 oz = 20,411.66 g
- 730 oz = 20,695.15 g
- 740 oz = 20,978.65 g
- 750 oz = 21,262.14 g
- 760 oz = 21,545.64 g
- 770 oz = 21,829.13 g
- 780 oz = 22,112.63 g
- 790 oz = 22,396.12 g
- 800 oz = 22,679.62 g
- 810 oz = 22,963.11 g
- 820 oz = 23,246.61 g
- 830 oz = 23,530.1 g
- 840 oz = 23,813.6 g
- 850 oz = 24,097.09 g
- 860 oz = 24,380.59 g
- 870 oz = 24,664.09 g
- 880 oz = 24,947.58 g
- 890 oz = 25,231.08 g
- 900 oz = 25,514.57 g
- 910 oz = 25,798.07 g
- 920 oz = 26,081.56 g
- 930 oz = 26,365.06 g
- 940 oz = 26,648.55 g
- 950 oz = 26,932.05 g
- 960 oz = 27,215.54 g
- 970 oz = 27,499.04 g
- 980 oz = 27,782.53 g
- 990 oz = 28,066.03 g
- 1,000 oz = 28,349.52 g
- 1,025 oz = 29,058.26 g
- 1,050 oz = 29,767 g
- 1,075 oz = 30,475.74 g
- 1,100 oz = 31,184.48 g
- 1,125 oz = 31,893.21 g
- 1,150 oz = 32,601.95 g
- 1,175 oz = 33,310.69 g
- 1,200 oz = 34,019.43 g
- 1,225 oz = 34,728.17 g
- 1,250 oz = 35,436.9 g
- 1,275 oz = 36,145.64 g
- 1,300 oz = 36,854.38 g
- 1,325 oz = 37,563.12 g
- 1,350 oz = 38,271.86 g
- 1,375 oz = 38,980.59 g
- 1,400 oz = 39,689.33 g
- 1,425 oz = 40,398.07 g
- 1,450 oz = 41,106.81 g
- 1,475 oz = 41,815.55 g
- 1,500 oz = 42,524.28 g
- 1,525 oz = 43,233.02 g
- 1,550 oz = 43,941.76 g
- 1,575 oz = 44,650.5 g
- 1,600 oz = 45,359.24 g
- 1,625 oz = 46,067.98 g
- 1,650 oz = 46,776.71 g
- 1,675 oz = 47,485.45 g
- 1,700 oz = 48,194.19 g
- 1,725 oz = 48,902.93 g
- 1,750 oz = 49,611.67 g
- 1,775 oz = 50,320.4 g
- 1,800 oz = 51,029.14 g
- 1,825 oz = 51,737.88 g
- 1,850 oz = 52,446.62 g
- 1,875 oz = 53,155.36 g
- 1,900 oz = 53,864.09 g
- 1,925 oz = 54,572.83 g
- 1,950 oz = 55,281.57 g
- 1,975 oz = 55,990.31 g
- 2,000 oz = 56,699.05 g
- 2,050 oz = 58,116.52 g
- 2,100 oz = 59,534 g
- 2,150 oz = 60,951.47 g
- 2,200 oz = 62,368.95 g
- 2,250 oz = 63,786.43 g
- 2,300 oz = 65,203.9 g
- 2,350 oz = 66,621.38 g
- 2,400 oz = 68,038.86 g
- 2,450 oz = 69,456.33 g
- 2,500 oz = 70,873.81 g
- 2,550 oz = 72,291.28 g
- 2,600 oz = 73,708.76 g
- 2,650 oz = 75,126.24 g
- 2,700 oz = 76,543.71 g
- 2,750 oz = 77,961.19 g
- 2,800 oz = 79,378.66 g
- 2,850 oz = 80,796.14 g
- 2,900 oz = 82,213.62 g
- 2,950 oz = 83,631.09 g
- 3,000 oz = 85,048.57 g
- 3,050 oz = 86,466.05 g
- 3,100 oz = 87,883.52 g
- 3,150 oz = 89,301 g
- 3,200 oz = 90,718.47 g
- 3,250 oz = 92,135.95 g
- 3,300 oz = 93,553.43 g
- 3,350 oz = 94,970.9 g
- 3,400 oz = 96,388.38 g
- 3,450 oz = 97,805.85 g
- 3,500 oz = 99,223.33 g
- 3,550 oz = 100,640.81 g
- 3,600 oz = 102,058.28 g
- 3,650 oz = 103,475.76 g
- 3,700 oz = 104,893.24 g
- 3,750 oz = 106,310.71 g
- 3,800 oz = 107,728.19 g
- 3,850 oz = 109,145.66 g
- 3,900 oz = 110,563.14 g
- 3,950 oz = 111,980.62 g
- 4,000 oz = 113,398.09 g
- 4,050 oz = 114,815.57 g
- 4,100 oz = 116,233.04 g
- 4,150 oz = 117,650.52 g
- 4,200 oz = 119,068 g
- 4,250 oz = 120,485.47 g
- 4,300 oz = 121,902.95 g
- 4,350 oz = 123,320.43 g
- 4,400 oz = 124,737.9 g
- 4,450 oz = 126,155.38 g
- 4,500 oz = 127,572.85 g
- 4,550 oz = 128,990.33 g
- 4,600 oz = 130,407.81 g
- 4,650 oz = 131,825.28 g
- 4,700 oz = 133,242.76 g
- 4,750 oz = 134,660.23 g
- 4,800 oz = 136,077.71 g
- 4,850 oz = 137,495.19 g
- 4,900 oz = 138,912.66 g
- 4,950 oz = 140,330.14 g
- 5,000 oz = 141,747.62 g
- 5,100 oz = 144,582.57 g
- 5,200 oz = 147,417.52 g
- 5,300 oz = 150,252.47 g
- 5,400 oz = 153,087.42 g
- 5,500 oz = 155,922.38 g
- 5,600 oz = 158,757.33 g
- 5,700 oz = 161,592.28 g
- 5,800 oz = 164,427.23 g
- 5,900 oz = 167,262.19 g
- 6,000 oz = 170,097.14 g
- 6,100 oz = 172,932.09 g
- 6,200 oz = 175,767.04 g
- 6,300 oz = 178,602 g
- 6,400 oz = 181,436.95 g
- 6,500 oz = 184,271.9 g
- 6,600 oz = 187,106.85 g
- 6,700 oz = 189,941.8 g
- 6,800 oz = 192,776.76 g
- 6,900 oz = 195,611.71 g
- 7,000 oz = 198,446.66 g
- 7,100 oz = 201,281.61 g
- 7,200 oz = 204,116.57 g
- 7,300 oz = 206,951.52 g
- 7,400 oz = 209,786.47 g
- 7,500 oz = 212,621.42 g
- 7,600 oz = 215,456.38 g
- 7,700 oz = 218,291.33 g
- 7,800 oz = 221,126.28 g
- 7,900 oz = 223,961.23 g
- 8,000 oz = 226,796.19 g
- 8,100 oz = 229,631.14 g
- 8,200 oz = 232,466.09 g
- 8,300 oz = 235,301.04 g
- 8,400 oz = 238,135.99 g
- 8,500 oz = 240,970.95 g
- 8,600 oz = 243,805.9 g
- 8,700 oz = 246,640.85 g
- 8,800 oz = 249,475.8 g
- 8,900 oz = 252,310.76 g
- 9,000 oz = 255,145.71 g
- 9,100 oz = 257,980.66 g
- 9,200 oz = 260,815.61 g
- 9,300 oz = 263,650.57 g
- 9,400 oz = 266,485.52 g
- 9,500 oz = 269,320.47 g
- 9,600 oz = 272,155.42 g
- 9,700 oz = 274,990.37 g
- 9,800 oz = 277,825.33 g
- 9,900 oz = 280,660.28 g
- 10,000 oz = 283,495.23 g
常用オンスは国際ポンドの 16 分の 1、すなわち 1959 年の協定により正確に 28.349523125 g です。 算出方法と出典.
よくある質問
1オンスは何グラムですか？
常用オンス 1 は 28.35 グラム（正確には 28.349523125 g）です。レシピや食品パッケージで使われるのはこのオンスです。
金の取引で使うトロイオンスは同じですか？
違います。トロイオンスは 31.1035 グラムで、約 10 % 重くなります。貴金属の計量に使う単位なので、料理用のオンスと混同してはいけません。
液量オンス（fl oz）は同じものですか？
いいえ、質量ではなく体積の単位です。米国の液量オンスは 29.57 mL、英国では 28.41 mL です。28.35 g と数字が近いのは偶然で、水の場合にしか一致しません。
ジーンズの 12 oz とは何のことですか？
生地が 12 オンスあるという意味ではなく、1 平方ヤードあたり 12 オンス、つまり目付です。1 平方ヤードあたり 1 オンスは 33.9 g/m² にあたるので、12 oz のデニムはおよそ 407 g/m² になります。一方ボクシンググローブの 10 oz は本当に質量で、片手 283 g です。
オンスはどこまで細かく分かれますか？
1 オンスは 16 ドラム、または 437.5 グレーンに分かれ、1 グレーンは正確に 64.79891 mg です。グレーンは今も生きています。アメリカのアスピリン 325 mg 錠はもとの 5 グレーン錠、つまり 324 mg を切り上げた値ですし、水の硬度は今もガロンあたりのグレーンで表され、1 グレーン毎ガロンは 1 リットルあたり 17.1 mg にあたります。
金衡ポンドは常用ポンドより重いですか？
いいえ、軽くなります。金衡ポンドは金衡オンス 12 個、すなわち 373.24 g ですが、常用ポンドはオンス 16 個で 453.59 g です。オンス 1 個は金衡のほうが重いのに、ポンドでは 17.7 パーセント軽くなります。両方の系はグレーンだけを共有しており、金衡オンスは 480 グレーン、常用オンスは 437.5 グレーンです。宝飾業界では今もペニーウェイト、記号 dwt を使い、これは金衡オンスの 20 分の 1、1.5552 g にあたります。