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Convert between volume units instantly. Our free online volume converter supports liters, gallons, cups, fluid ounces, milliliters, and more with precise, real-time results.

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体积 Converter

免费体积转换器, 即时换算升、加仑、液量盎司、杯和毫升

使用 OmniConverter 免费在线体积转换器即时换算任何体积。1 美制加仑等于 3.785 升，1 升等于 1,000 毫升，1 杯等于 236.6 毫升。支持升、毫升、美制加仑、液量盎司、杯、品脱、夸脱和立方米。适合烹饪、化学实验或任何需要精确液体测量的场合。

使用方法

通过三个简单步骤进行转换。

1

输入要转换的体积

2

选择源体积单位与目标单位

3

立即获得体积转换结果

热门体积换算

Liters 至 GallonsGallons 至 LitersMilliliters 至 Fluid OuncesFluid Ounces 至 MillilitersLiters 至 MillilitersMilliliters 至 LitersCups 至 MillilitersMilliliters 至 CupsTablespoons 至 MillilitersMilliliters 至 TablespoonsTeaspoons 至 MillilitersMilliliters 至 TeaspoonsLiters 至 CupsCups 至 LitersQuarts 至 LitersLiters 至 QuartsPints 至 LitersLiters 至 PintsCubic Meters 至 LitersLiters 至 Cubic MetersCups 至 Fluid OuncesFluid Ounces 至 CupsTablespoons 至 TeaspoonsTeaspoons 至 Tablespoons

常用基准

参考

1 L → L

1 L

参考

1 L → mL

1000 mL

参考

1 L → m³

0.001 m³

参考

1 L → gal

0.2641721769 gal

参考

1 L → qt

1.0566881491 qt

参考

1 L → pt

2.1133785315 pt

参考

1 L → cup

4.2267570629 cup

参考

1 L → fl oz

33.8140565033 fl oz

实际应用场景

在中国，汽油按升（L）加油, 92号汽油每升多少钱人人关心。汽车油耗以升/100公里计算，但进口美系车的行车电脑显示MPG，需要换算。矿泉水常见的容量为550ml、1.5L和4.5L。烘焙时，美国食谱使用杯（cup ≈ 237ml）、汤匙（tbsp ≈ 15ml）和茶匙（tsp ≈ 5ml），而国内食谱用毫升和克。家庭常用的电饭煲按升标称, 3L适合2-3人。洗衣液和柔顺剂的用量按ml标注，但跨境电商进口商品的标签可能是fl oz。游泳池的容积用立方米计算。医用注射器和口服液用ml，药品进出口时需注意盎司与毫升的换算。啤酒瓶装多为500ml或330ml，进口精酿啤酒以355ml（12oz）为主。化学实验中，溶液体积的精确测量是日常操作。

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常见问题

常见换算问题的快速解答

一加仑等于多少升？+

美制加仑等于3.785升，英制加仑等于4.546升。转换器支持两种。

毫升和杯怎么换算？+

中国1杯水约250毫升。美制1 cup = 236.6毫升。

一升等于多少毫升？+

一升等于1,000毫升。

一瓶白酒是500ml吗？+

是的，中国白酒标准瓶为500毫升（0.5升）。红酒和洋酒通常为750毫升。

如何将液体盎司换算成毫升？+

美制液量盎司乘以29.57得到毫升。英制乘以28.41。

一桶石油是多少升？+

一桶石油（barrel）等于159升（42美制加仑）。

如何将立方米换算成升？+

1立方米 = 1,000升。

Latest Blog Posts

Tips, guides, and insights about unit conversions

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Quick Answer: 体积 Converter

Convert 体积 instantly — enter any value and get all units at once. The top searches are liters to gallons conversion (28,557 impressions) and gallons to liters (18,496). Volume conversion is crucial for cooking and baking (US cups vs UK), fuel efficiency, pharmaceutical dosing, and trade — especially US vs UK gallon confusion when comparing fuel economy or recipes.

How the 体积 Converter Works

Our volume converter uses accurate conversion factors to convert between liters, gallons, cups, fluid ounces, milliliters, and other volume units. For gallons, we distinguish US gallon (3.78541 L, 231 in³) and UK gallon (4.54609 L) — a common source of confusion. Results update instantly as you type, so you can see liters to gallons and gallons to liters side by side.

Formula & Sources

SI litre = 1 dm³. US customary definitions from NIST SP 811: 1 US gallon = 231 in³ exactly.

Worked Example

Example: 2 liters to US gallons — 2 × 0.264172 = 0.528 gal. Reverse: 1 gal × 3.78541 = 3.785 L.

Common 体积 Conversions

The top searches are liters to gallons conversion (28,557 impressions) and gallons to liters (18,496). Key factors: 1 liter = 0.264172 US gallons, 1 US gallon = 3.78541 liters, 1 UK gallon = 4.54609 liters, 1 liter = 0.219969 UK gallons. Also: cups to milliliters (1 cup = 236.6 mL) and how many liters in a gallon — 3.785 L (US) or 4.546 L (UK). For UK, liters to gallons UK is 1 L = 0.22 UK gal.

When to Use 体积 Conversion

Volume conversion is crucial for cooking and baking (US cups vs UK), fuel efficiency, pharmaceutical dosing, and trade — especially US vs UK gallon confusion when comparing fuel economy or recipes. Use the converter to see both US and UK gallons at once and avoid the 20% difference.

Accuracy & Common Mistakes

All factors are stored unrounded and computed in double precision. We avoid cumulative rounding by converting via a base unit. Always verify critical results with a second source for safety-critical tasks.

Frequently Asked Questions

How many liters in a gallon? (liters to gallons)

1 US gallon = 3.78541 liters, 1 UK gallon = 4.54609 liters. So 1 liter = 0.264172 US gallons or 0.219969 UK gallons. For liters to gallons conversion, divide liters by 3.785 (US) or 4.546 (UK).

How many liters in a US gallon?

1 US gallon = 3.78541 liters exactly (231 cubic inches, NIST). For US gallon to liters, multiply gallons by 3.785. Example: 5 US gal = 18.927 L.

What is the difference between US and UK gallon?

1 UK gallon = 4.54609 liters, 20% larger than 1 US gallon (3.78541 L). Liters to gallons UK is 1 L = 0.219969 UK gal. Check which gallon your source uses.

Volume Conversion Chart

Quick reference for common conversions

Volume Conversion Chart — multiply the From value by the factor to get the To value.
FromToMultiply By
1 litergallons (US)0.2642
1 gallonliters3.785
1 cupmilliliters236.6
1 fluid ouncemilliliters29.57
1 tablespoonmilliliters14.79
1 teaspoonmilliliters4.93
1 litercups4.227
1 gallonquarts4

Popular Volume comparisons

Jump directly to a side-by-side comparison — no typing needed. Also discoverable via search.

Liter → Milliliter→Liter → Cubic Meter→Liter → Gallon (US)→Liter → Quart (US)→Milliliter → Cubic Meter→Milliliter → Gallon (US)→
View all comparisons

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