A 26 oz box of powdered milk holds about 6.1 cups. The bag weighs 737 g, and one cup of powdered milk weighs 120 g, so 737 divided by 120 is 6.1. The figure is approximate, because cup weights vary with how the cup is filled and how settled the contents are, so if the recipe matters, weigh the powdered milk on a kitchen scale instead of counting cups from the package. For everyday cooking, 6.1 cups is the number to plan with.

Nonfat dry milk powder; reconstitutes with water. Baking, bread machines, hot chocolate and camping food. Knowing how many cups are in the package answers the question every cook asks in the shop: is this bag enough for the recipe, or do I need two? A 26 oz box that holds 6.1 cups covers a recipe needing 1 cup 6.14 times over, and a recipe needing 2 cups 3.1 times. Buy the size that covers your regular recipes with a little to spare, and you will stop running out halfway through a bake.

Package sizes to cups conversion table

Package size Weight Cups (approx.)
4 oz 113.4 g 0.9 cups
8 oz 226.8 g 1.9 cups
12 oz 340.19 g 2.8 cups
15 oz 425.24 g 3.5 cups
16 oz 453.59 g 3.8 cups
26 oz 737.09 g 6.1 cups
32 oz 907.18 g 7.6 cups
64 oz 1814.37 g 15.1 cups
80 oz 2267.96 g 18.9 cups
1 lb 453.59 g 3.8 cups
2 lb 907.18 g 7.6 cups
4 lb 1814.36 g 15.1 cups

The table covers the common package sizes for powdered milk, from a small 4 oz pack up to a 4 lb bag. The 26 oz box in the headline is the 737 g size, which holds 6.1 cups. The gram column is the reliable one: package weights are printed on the label and do not change, while cup counts depend on how the cup is filled. If you are scaling a recipe, work in grams — a cup of powdered milk is 120 g — and the package arithmetic becomes exact.

Cups, grams and tablespoons

One cup of powdered milk weighs 120 g, measured spooned and levelled. The table below breaks that cup down into the smaller measures recipes actually use, so you can measure a spoonful from the package without opening a second container.

Measure Grams (approx.)
1 teaspoon 2.5 g
1 tablespoon 7.5 g
2 tablespoons 15 g
1/4 cup 30 g
1/2 cup 60 g
1 cup 120 g

A tablespoon of powdered milk is 7.5 g and a teaspoon is 2.5 g. For small amounts, spoon measures are more accurate than cups: a recipe that needs 2 tablespoons takes 15 g, and measuring that in a cup would mean eyeballing an eighth of a cup, which nobody can do reliably. Use the spoon figures for anything under a quarter cup, and the cup figures for anything above it.

Worked examples

A loaf in the bread machine

A bread machine loaf uses about 1/4 cup of powdered milk, which is 30 g. The 26 oz box holds 6.1 cups, so one container covers about 24.57 loaves. Add the ingredients in the order the machine manual says — usually liquids first, then dry, with the yeast last on top — because the order is what keeps the yeast dry until the kneading starts. If the recipe calls for the powdered milk to be dissolved, stir it into the warm liquid first rather than adding it dry, so it distributes evenly through the dough. A loaf made with the right amount of powdered milk browns evenly; too much and the crust darkens before the middle is done.

A baking batch that needs 1 cup

A cake or a batch of muffins that calls for 1 cup of powdered milk needs 120 g. The 26 oz box holds 6.1 cups, so one container covers 6.1 cups of baking — 6.14 batches at one cup each, with 0.1 cups left over if the count is not whole. Measure powdered milk in the right tool for its form: a liquid in a jug read at eye level, a dry ingredient spooned and levelled in a dry cup. If the recipe is one you make often, weigh the full cup once and write the gram figure on the card — 120 g — so you can skip the measuring cups entirely next time.

Smoothies for the week

A smoothie for two uses about 1/2 cup of powdered milk, which is 60 g. The 26 oz box holds 6.1 cups, so one container makes about 12.28 smoothies. Pour the powdered milk into the blender first, then add the fruit and the ice — liquid at the bottom helps the blades catch and blend smoothly instead of spinning in air. Blend in short bursts rather than one long run, and stop to scrape the sides down once, so nothing hides under the blades unblended. Drink the smoothie straight away: it separates as it sits, and a quick shake or a stir brings it back together.

How the figure is worked out

The calculation depends on whether the package is sold by weight or by volume. This 26 oz box is sold by weight: it contains 737 g of powdered milk, and one cup weighs 120 g, so 737 divided by 120 is 6.1 cups. There is no other step. The package size is printed on the label, the cup weight comes from USDA, and the division gives the answer.

The cup weight itself is where the uncertainty lives. One cup of powdered milk weighs 120 g, measured spooned and levelled from a US cup of 236.6 ml. The figure comes from USDA and carries medium confidence in our table. A cup is a volume, not a weight, so anything that changes how much of the ingredient fits in that volume changes the weight: how firmly it is packed, how fine the grind is, how much moisture it has absorbed, and whether it was spooned or scooped. That is why this page labels every result approximate and why a scale is the only way to be certain.

Practical guidance

Nonfat dry milk powder; reconstitutes with water. Baking, bread machines, hot chocolate and camping food. Airtight container, cool and dry, up to 1 year.

The most common mistake with powdered milk is measuring it the wrong way for its form. Measure powdered milk in the right tool for its form — a liquid in a jug read at eye level, a dry ingredient spooned and levelled in a dry cup, a thick paste pressed into the cup to remove air pockets. A cup of powdered milk weighs 120 g, and that figure assumes the standard method (spooned and levelled), so a different method gives a different weight. When a recipe depends on the amount — a sauce that must thicken, a dough that must hold together — weigh it instead of measuring it, and write the gram figure on the recipe card for next time.

If you do not have a scale, the cup figures on this page will get you close enough for everyday cooking, but not for precision baking. A basic digital kitchen scale costs little, weighs in grams, and removes the single biggest source of variation in baking. Until you have one, spoon and level dry ingredients, use a liquid jug for liquids, and never scoop from the bag.

Frequently asked questions

How many cups are in a 26 oz box of powdered milk?

About 6.1 cups. The headline figure comes from the package size divided by the cup weight: one cup of powdered milk weighs 120 g, so the contents of the 26 oz box work out to 6.1 cups. The figure is approximate, because cup weights vary with how the cup is filled and how settled the contents are.

How many grams are in a 26 oz box of powdered milk?

About 737 g — 6.1 cups at 120 g per cup. The package label gives the net weight, so the gram figure is exact where the cup figure is approximate.

How many tablespoons are in a 26 oz box of powdered milk?

About 98.27 tablespoons. There are 16 tablespoons in a cup, and the 26 oz box holds 6.1 cups, so 6.1 times 16 is 98.27. That is 294.8 teaspoons.

Is the cup count exact, or should I weigh it?

It is approximate. The cup count is worked out from the cup weight of 120 g, and that weight assumes the standard method (spooned and levelled). If the recipe matters — a cake, a frosting, a sauce that must set — weigh the ingredient on a kitchen scale instead of counting cups from the package. For everyday cooking, the 6.1-cup figure is close enough.

How should I store the rest of the 26 oz box once it is open?

Airtight container, cool and dry, up to 1 year. Once opened, keep the container sealed between uses so the contents stay fresh and the weight per cup stays consistent — an open bag absorbs moisture from the air, which changes both the flavour and the cup weight.

Related conversions