Convert Lemon Juice from Cup (US) to Fluid Ounces

How many fluid ounces is 1 US cup of lemon juice?

1 US cup of lemon juice (fresh lemon juice) is 8.12 fluid ounces. 2 US cups of lemon juice is 16.23 fluid ounces. 1/2 US cup of lemon juice is 4.06 fluid ounces. 1/4 US cup (0.25 US cup) of lemon juice is 2.03 fluid ounces. Use the converter below for any amount.

Lemon juice is a tart, acidic liquid used in sweet and savoury baking alike. It activates baking soda, adds brightness to glazes and icing, and balances sweetness in fruit-based recipes. One metric cup (250 ml) holds 255 g (8.99 oz).

Getting the amount right matters: too much acid can affect rise and flavour balance. Measuring by weight rather than volume gives consistent results, especially when scaling recipes up or down.

Also known as

  • fresh lemon juice
  • citrus juice

Lemon Juice Calculator

Stir lemon juice into milk to make a quick buttermilk substitute. Calculate the exact amounts for any recipe.

Buttermilk Substitute Calculator

White vinegar is sharper and more concentrated than lemon juice. Use roughly half the amount of white vinegar when substituting, and expect a neutral flavour without any citrus notes. See our White Vinegar converter.

Buttermilk is thicker and dairy-based, but both activate baking soda in a similar way. Stir 1 tablespoon of lemon juice into 1 cup of milk and let it sit for a few minutes to make a quick buttermilk substitute. See our Buttermilk converter.

Lime juice is sharper and more floral than lemon juice. Close in weight (248 g vs 255 g per cup), so swap 1:1 in dressings, marinades, and cocktails; expect a more aromatic finish. See our Lime Juice converter.

Squeezing your own? The lemon converter works out how many whole lemons a recipe needs across small, medium, and large fruit, using the weight of each size. See our Lemon converter.

Out of lemon juice? See lemon juice substitutes →

No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.

Lemon Juice Measurement Converter

Enter a value and pick your units.

Result

0 Fluid Ounces

Common Lemon Juice Conversions

Here are the most common lemon juice conversions from cups (US) to fluid Ounces.

Cups (US)Fluid Ounces
0.25 cups (US)2.03 fl oz
0.5 cups (US)4.06 fl oz
0.75 cups (US)6.09 fl oz
1 cup (US)8.12 fl oz
1.25 cups (US)10.14 fl oz
1.5 cups (US)12.17 fl oz
2 cups (US)16.23 fl oz
2.5 cups (US)20.29 fl oz
3 cups (US)24.35 fl oz

Lemon Juice Conversion Chart

The conversion chart below gives a quick reference for converting lemon juice from Cup (US) to Fluid Ounces and other measurements.

cup(US)fl ozcupgramsouncestbsptspml
0.25 cup (US)2.03 fl oz0.24 cup61.2 g2.16 oz4 tbsp12 tsp60 ml
0.5 cup (US)4.06 fl oz0.48 cup122.4 g4.32 oz8 tbsp24 tsp120 ml
1 cup (US)8.12 fl oz0.96 cup244.8 g8.63 oz16 tbsp48 tsp240 ml
2 cup (US)16.23 fl oz1.92 cup489.6 g17.26 oz32 tbsp96 tsp480 ml

Frequently Asked Questions

How many fluid ounces is 1 US cup of lemon juice?
1 US cup of lemon juice is 8.12 fluid ounces. The ratio is fixed, so 2 US cups of lemon juice is 16.23 fluid ounces and 0.5 US cups is 4.06 fluid ounces. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the lemon juice converter
How many fluid ounces is 1.5 US cups of lemon juice?
1.5 US cups of lemon juice is 12.17 fluid ounces. The ratio is fixed, so 1 US cup of lemon juice is 8.12 fluid ounces and 2 US cups is 16.23 fluid ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many fluid ounces is 2 US cups of lemon juice?
2 US cups of lemon juice is 16.23 fluid ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of lemon juice is 8.12 fluid ounces, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact fluid ounces reading.
How many US cups of lemon juice is 8.12 fluid ounces?
8.12 fluid ounces of lemon juice is 1 US cup. The conversion works the same in reverse, so you can switch between fluid ounces and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in fluid ounces. The converter above and the chart below cover both directions for any amount.
How many fluid ounces is 1 US cup of fresh lemon juice?
Fresh lemon juice is another name for lemon juice, so 1 US cup of fresh lemon juice is 8.12 fluid ounces, exactly the same as lemon juice. The figure does not change with the name: 2 US cups is 16.23 fluid ounces and 0.5 US cups is 4.06 fluid ounces. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are lemon juice and fresh lemon juice the same thing?
Yes. Fresh lemon juice is another name for lemon juice, so they are the same ingredient and convert identically. 1 US cup of lemon juice is 8.12 fluid ounces under either name, and 2 US cups is 16.23 fluid ounces. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 cup (US) lemon juice in fluid ounces?
1/2 US cup of lemon juice is 4.06 fluid ounces. The ratio is fixed, so 1 US cup of lemon juice is 8.12 fluid ounces and 2 US cups is 16.23 fluid ounces. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 cup (US) lemon juice in fluid ounces?
1/4 US cup (0.25 US cup) of lemon juice is 2.03 fluid ounces. The ratio is fixed, so 1 US cup of lemon juice is 8.12 fluid ounces and 2 US cups is 16.23 fluid ounces. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

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