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Convert Fluid Ounces to Liters

Instantly convert Fluid Ounces (fl oz) to Liters (L) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: fl oz to Lmultiply by 0.0295735

Reference Table

Fluid Ounces (fl oz)Liters (L)
10.0295735
50.147867
100.295735
250.739337
501.47867
1002.95735

How to Convert Fluid Ounces to Liters

Formula

To convert Fluid Ounces (fl oz) to Liters (L): multiply by 0.0295735

Step-by-Step

  1. Start with your value in Fluid Ounces (fl oz).
  2. Multiply by 0.0295735 to perform the conversion.
  3. The result is your value expressed in Liters (L).

Conversion Factor

1 fl oz = 0.0295735 L

Reverse Factor

1 L = 33.8141 fl oz

Worked Example

Convert 25 Fluid Ounces to Liters: 25 fl oz = 0.739337 L

About Fluid Ounce (fl oz)

A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29.5735 mL). Fluid ounces are the universal US small-liquid-volume retail unit: beverage containers (a standard US Coke can is 12 fl oz, a Starbucks Grande is 16 fl oz, Trenta 30 fl oz), shampoo / lotion / personal-care bottles, US cocktail and bartending recipes (1.5 fl oz is the standard 'jigger' shot), wine pours (a standard restaurant pour is 5 fl oz; a generous home pour 6 fl oz), and home-cooking liquid measurements. **Important**: the US fluid ounce (29.5735 mL) is NOT the same as the UK Imperial fluid ounce (28.4131 mL) — the ~4% difference is usually inconsequential at consumer level but matters when scaling industrial formulations. The US fluid ounce is also distinct from the avoirdupois ounce (a weight unit ≈ 28.35 g), although for plain water the numerical values happen to coincide closely (1 US fl oz of water ≈ 1.04 oz mass).

About Liter (L)

A metric unit of volume equal to exactly 0.001 cubic meters (one cubic decimeter), defined by the BIPM since 1964. The litre is accepted for use with the SI per the BIPM SI Brochure and is the global standard for beverages and beverage labelling under the EU Food Information to Consumers Regulation 1169/2011 and Codex Alimentarius, fuel economy (km/L outside North America), automotive engine displacement (e.g., '3.0 L turbo'), medical fluid volumes (TPN bags, IV fluids, blood volume), industrial chemical-process material balances (Aspen HYSYS / CHEMCAD default volumetric unit alongside m³), and HVAC/plumbing flow specs. Reference values: a standard wine bottle is 0.75 L, a Coke can 0.33 L, a US half-gallon ~1.89 L, a midsize-car fuel tank 50-70 L, a household water heater 150-300 L, a standard IBC industrial-chemical tote 1,000 L. One litre of pure water at 4 °C and 1 atm weighs almost exactly 1 kg — a deliberate design feature of the original metric system. 1 L = 1,000 mL = 1,000 cm³ = 1 dm³ = 0.2642 US gal = 33.81 US fl oz.

Quick Facts

  • 1 Fluid Ounce equals 0.0295735 Liters
  • 1 Liter equals 33.8141 Fluid Ounces
  • Fluid Ounce is a unit of volume
  • Liter is a unit of volume
  • This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
  • The Fluid Ounce belongs to the imperial system
  • The Liter belongs to the metric system

Common Fluid Ounce to Liter Conversions

Fluid Ounces (fl oz)Liters (L)
0.010.000295735
0.10.00295735
0.250.00739337
0.50.0147867
10.0295735
20.059147
30.0887205
50.147867
100.295735
150.443603
200.59147
250.739337
501.47867
752.21801
1002.95735
2507.39337
50014.7867
100029.5735
5000147.868
10000295.735

Understanding Fluid Ounces

The Fluid Ounce (symbol: fl oz) is a unit of volume. A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29.5735 mL). Fluid ounces are the universal US small-liquid-volume retail unit: beverage containers (a standard US Coke can is 12 fl oz, a Starbucks Grande is 16 fl oz, Trenta 30 fl oz), shampoo / lotion / personal-care bottles, US cocktail and bartending recipes (1.5 fl oz is the standard 'jigger' shot), wine pours (a standard restaurant pour is 5 fl oz; a generous home pour 6 fl oz), and home-cooking liquid measurements. **Important**: the US fluid ounce (29.5735 mL) is NOT the same as the UK Imperial fluid ounce (28.4131 mL) — the ~4% difference is usually inconsequential at consumer level but matters when scaling industrial formulations. The US fluid ounce is also distinct from the avoirdupois ounce (a weight unit ≈ 28.35 g), although for plain water the numerical values happen to coincide closely (1 US fl oz of water ≈ 1.04 oz mass).

It belongs to the imperial measurement system.

Fluid Ounces are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.

Understanding Liters

The Liter (symbol: L) is a unit of volume. A metric unit of volume equal to exactly 0.001 cubic meters (one cubic decimeter), defined by the BIPM since 1964. The litre is accepted for use with the SI per the BIPM SI Brochure and is the global standard for beverages and beverage labelling under the EU Food Information to Consumers Regulation 1169/2011 and Codex Alimentarius, fuel economy (km/L outside North America), automotive engine displacement (e.g., '3.0 L turbo'), medical fluid volumes (TPN bags, IV fluids, blood volume), industrial chemical-process material balances (Aspen HYSYS / CHEMCAD default volumetric unit alongside m³), and HVAC/plumbing flow specs. Reference values: a standard wine bottle is 0.75 L, a Coke can 0.33 L, a US half-gallon ~1.89 L, a midsize-car fuel tank 50-70 L, a household water heater 150-300 L, a standard IBC industrial-chemical tote 1,000 L. One litre of pure water at 4 °C and 1 atm weighs almost exactly 1 kg — a deliberate design feature of the original metric system. 1 L = 1,000 mL = 1,000 cm³ = 1 dm³ = 0.2642 US gal = 33.81 US fl oz.

It belongs to the metric measurement system.

Liters are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.

Why Convert Fluid Ounces to Liters?

Volume conversions between Fluid Ounces and Liters are essential in cooking, chemistry, and fluid mechanics. Recipes from different countries use different measurement systems, laboratory procedures reference varying units, and engineers designing fluid systems need precise volume calculations for pipes, tanks, and pumps.

Frequently Asked Questions

How do I convert Fluid Ounces to Liters?

A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29. To convert Fluid Ounces to Liters, multiply by 0.0295735. For example, 25 fl oz equals 0.739337 L.

How many Liters are in 1 Fluid Ounce?

There are 0.0295735 Liters in 1 Fluid Ounce.

How many Fluid Ounces are in 1 Liter?

There are 33.8141 Fluid Ounces in 1 Liter.

What is the formula for Fluid Ounce to Liter conversion?

The formula is: multiply by 0.0295735. This means 1 fl oz = 0.0295735 L.

Is a Fluid Ounce bigger than a Liter?

Yes. One Fluid Ounce is larger than one Liter because 1 fl oz equals 0.0295735 L, which is less than 1.

When do you need to convert between Fluid Ounces and Liters?

A metric unit of volume equal to exactly 0. Fluid Ounce and Liter are both volume units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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