Volume Converter

The Volume Converter converts between different volume measurement units. It provides two conversion tabs: liters↔gallons (US) and milliliters↔fluid ounces (US). The liter (L) is the standard metric unit of volume used worldwide, defined as exactly 1 cubic decimeter (1,000 cm³). The milliliter (mL) equals 1/1,000 of a liter. These units are used for beverages, cooking, fuel, medicine, and scientific measurements in most countries. The gallon and fluid ounce are part of the US customary system. The US gallon (3.785 L) differs from the Imperial gallon used in the UK (4.546 L). This converter uses the US gallon, which is the more commonly encountered version. One US gallon = 128 fluid ounces = 4 quarts = 8 pints. Volume conversions are essential when following international recipes, understanding fuel efficiency (MPG vs L/100km), comparing beverage sizes across countries, and for medical dosage calculations. A common source of confusion is that a US gallon is about 20% smaller than an Imperial gallon, which affects fuel economy comparisons between US and UK vehicles.

1. Select a conversion tab. • L ↔ gallon: Convert between liters and US gallons. Used for fuel, large liquid volumes. • mL ↔ fl oz: Convert between milliliters and US fluid ounces. Common for beverages, cooking, medicine. 2. Enter a value in either field. Type a number and the conversion appears instantly. Common Examples: • Water bottle: 500 mL = 16.91 fl oz • Soda can: 355 mL = 12 fl oz • Wine bottle: 750 mL = 25.36 fl oz • Car fuel tank: 60 L = 15.85 gallons • Milk gallon: 1 gallon = 3.785 L • Medicine dose: 5 mL = 0.169 fl oz (1 teaspoon) Note: This converter uses US customary units. UK Imperial fluid ounces and gallons are slightly different (1 UK fl oz = 28.41 mL vs 1 US fl oz = 29.57 mL). When following British recipes or converting UK fuel economy figures, be aware of this distinction.

■ Liters ↔ US Gallons 1 US gallon = 3.785411784 L (exact) 1 L = 0.264172 US gallons Formula: gallons = L ÷ 3.785411784 Formula: L = gallons × 3.785411784 Example: 50 L = 50 ÷ 3.7854 = 13.21 gallons Example: 10 gallons = 10 × 3.7854 = 37.85 L ■ Milliliters ↔ US Fluid Ounces 1 US fl oz = 29.5735296 mL (exact) 1 mL = 0.033814 US fl oz Formula: fl oz = mL ÷ 29.5735296 Formula: mL = fl oz × 29.5735296 Example: 250 mL = 250 ÷ 29.574 = 8.45 fl oz Example: 16 fl oz = 16 × 29.574 = 473.18 mL ■ US vs Imperial 1 US gallon = 3.785 L | 1 UK gallon = 4.546 L 1 US fl oz = 29.574 mL | 1 UK fl oz = 28.413 mL ■ Volume Unit Hierarchy 1 US gallon = 4 quarts = 8 pints = 16 cups = 128 fl oz 1 quart = 946.35 mL | 1 pint = 473.18 mL | 1 cup = 236.59 mL ■ Quick Reference 1 teaspoon = 5 mL | 1 tablespoon = 15 mL = 3 tsp 1 cup = 236.59 mL | 1 pint = 473 mL | 1 quart = 946 mL 1 L = 4.227 cups | 1 L = 2.113 pints | 1 L = 1.057 quarts

■ Quick Mental Conversions • Liters to gallons: Divide by 4 (rough). 20 L ≈ 5 gallons (actual: 5.28) • Gallons to liters: Multiply by 4. 5 gallons ≈ 20 L (actual: 18.93) • mL to fl oz: Divide by 30. 300 mL ≈ 10 fl oz (actual: 10.14) • fl oz to mL: Multiply by 30. 8 fl oz ≈ 240 mL (actual: 236.6) ■ Beverage Size Comparisons Korean/metric sizes vs US sizes: • Korean soju bottle: 360 mL = 12.2 fl oz • Korean beer can: 500 mL = 16.9 fl oz • US soda can: 12 fl oz = 355 mL • US large drink: 32 fl oz = 946 mL • Starbucks Grande: 473 mL = 16 fl oz • Starbucks Venti: 591 mL = 20 fl oz ■ Fuel Economy Conversion • US uses MPG (miles per gallon): higher = better • Korea/EU uses L/100km: lower = better • Conversion: L/100km = 235.21 ÷ MPG • 30 MPG = 7.84 L/100km | 40 MPG = 5.88 L/100km ■ Cooking Measurements • 1 cup (US) = 236.6 mL ≈ 240 mL in many recipes • Korean recipe '1컵' = 200 mL (different from US cup!) • Japanese recipe '1カップ' = 200 mL • Australian cup = 250 mL ■ Common Mistakes • US gallon ≠ UK gallon (3.785 L vs 4.546 L) • When comparing US and UK fuel economy, account for gallon difference • Don't confuse fluid ounces (volume) with ounces (weight)