500Lは何galですか？
500L = 132.086gal
132.086galなので132galと言っても差し支えありません — 誤差は0.5%以内です。
逆に500galは何Lですか？
500gal = 1,892.706L
計算式: gal = L × 0.264172
L → gal 前後の値
50 L13.209gal
100 L26.417gal
150 L39.626gal
200 L52.834gal
250 L66.043gal
300 L79.252gal
350 L92.46gal
400 L105.669gal
450 L118.877gal
500 L132.086gal
550 L145.295gal
600 L158.503gal
650 L171.712gal
700 L184.92gal
750 L198.129gal
800 L211.338gal
850 L224.546gal
900 L237.755gal
950 L250.963gal
1,000 L264.172gal