Convert Oat Milk from Cup to Fluid Ounces

How many fluid ounces is 1 cup of oat milk?

1 cup of oat milk (oat drink) is 8.45 fluid ounces. 2 cups of oat milk is 16.91 fluid ounces. 1/2 cup of oat milk is 4.23 fluid ounces. 1/4 cup (0.25 cup) of oat milk is 2.11 fluid ounces. Use the converter below for any amount.

  • These figures use the metric cup (250 ml). A US cup is slightly smaller at 240 ml, so it holds a little less. Use the US cup converter →
  • Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →

Oat milk is a plant drink made by blending oats with water and straining out the solids, prized for its creamy mouthfeel and slight natural sweetness. One metric cup (250 ml) weighs around 245 grams or 8.64 ounces. When a recipe calls for oat milk in cups but the carton lists millilitres, converting by weight keeps the body of coffee, porridge, and dairy-free bakes consistent.

Oat milk cartons hold 1 litre or 250 ml mini-packs, while recipes call for cups, grams, and tablespoons. Converting between the four stops you over-pouring into a delicate batter.

Also known as

  • oat drink
  • oat beverage

Cow's milk is richer in fat than oat milk (around 3 to 4% to oat milk's 3%) and slightly heavier (258 g vs 245 g per cup). Swap 1:1 by volume in pancakes, cocoa, and cake batters for a dairy-free result; oat milk gives a thicker mouthfeel in coffee than skim or low-fat milk. See what 1 cup of milk is in fluid ounces.

Almond milk is thinner and lower in fat than oat milk (around 1 to 2% to oat milk's 3%). They are equal in weight (245 g vs 245 g per cup) and swap 1:1; oat milk gives a creamier body in coffee and bakes, while almond milk stays lighter in shakes and porridge. See what 1 cup of almond milk is in fluid ounces.

Soy milk is higher in protein than oat milk (around 3% to oat milk's 1%), so it sets firmer in cooked sauces and custards. They are equal in weight (245 g vs 245 g per cup) and swap 1:1; oat milk wins in coffee for body, while soy milk wins in custards for hold. See what 1 cup of soy milk is in fluid ounces.

Oat milk is blended from rolled oats and water, then strained, so the oats are its base ingredient. Soak and blend rolled oats to make your own, and weigh the oats when scaling a batch up or down. See our Rolled Oats converter.

Out of oat milk? See oat milk substitutes →

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

Scoop it right, get measuring cups

Oat Milk Measurement Converter

Enter a value and pick your units.

Result

8.45 Fluid Ounces

Common Oat Milk Conversions

Here are the most common oat milk conversions from cups to fluid Ounces.

CupsFluid Ounces
0.25 cups2.11 fl oz
0.5 cups4.23 fl oz
0.75 cups6.34 fl oz
1 cup8.45 fl oz
1.25 cups10.57 fl oz
1.5 cups12.68 fl oz
2 cups16.91 fl oz
2.5 cups21.14 fl oz
3 cups25.36 fl oz

Oat Milk Conversion Chart

The conversion chart below gives a quick reference for converting oat milk from Cup to Fluid Ounces and other measurements.

cupfl ozgramsounceslbkgcup(US)tbsptspml
0.25 cup2.11 fl oz61.25 g2.16 oz0.14 lb0.06 kg0.26 cup (US)4.17 tbsp12.5 tsp62.5 ml
0.5 cup4.23 fl oz122.5 g4.32 oz0.27 lb0.12 kg0.52 cup (US)8.33 tbsp25 tsp125 ml
1 cup8.45 fl oz245 g8.64 oz0.54 lb0.25 kg1.04 cup (US)16.67 tbsp50 tsp250 ml
2 cup16.91 fl oz490 g17.28 oz1.08 lb0.49 kg2.08 cup (US)33.33 tbsp100 tsp500 ml

This is a volume conversion, so the result is the same for every ingredient. Use the cups to fluid ounces volume converter to switch between cups, tablespoons, teaspoons, and millilitres without weighing.

Frequently Asked Questions

What is 1 cup of oat milk in fluid ounces?
1 cup of oat milk is 8.45 fluid ounces. The ratio is fixed, so 2 cups of oat milk is 16.91 fluid ounces and 0.5 cups is 4.23 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 oat milk converter
How many fluid ounces is 1.5 cups of oat milk?
1.5 cups of oat milk is 12.68 fluid ounces. The ratio is fixed, so 1 cup of oat milk is 8.45 fluid ounces and 2 cups is 16.91 fluid ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 cups of oat milk in fluid ounces?
2 cups of oat milk is 16.91 fluid ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 cup of oat milk is 8.45 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 cups of oat milk is 8.45 fluid ounces?
8.45 fluid ounces of oat milk is 1 cup. The conversion works the same in reverse, so you can switch between fluid ounces and cups without changing the result. This helps when a recipe lists cups but you would rather weigh or measure in fluid ounces. The converter above and the chart below cover both directions for any amount.
Are oat milk and oat drink the same thing?
Yes. Oat drink is another name for oat milk, so they are the same ingredient and convert identically. 1 cup of oat milk is 8.45 fluid ounces under either name, and 2 cups is 16.91 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 oat milk in fluid ounces?
1/2 cup of oat milk is 4.23 fluid ounces. The ratio is fixed, so 1 cup of oat milk is 8.45 fluid ounces and 2 cups is 16.91 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 oat milk in fluid ounces?
1/4 cup (0.25 cup) of oat milk is 2.11 fluid ounces. The ratio is fixed, so 1 cup of oat milk is 8.45 fluid ounces and 2 cups is 16.91 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.

Other Ingredients

If you need help with any other ingredients click below: