Grams to Milliliters Converter

Convert grams to milliliters by ingredient, great when recipes mix weight and volume. Enter g, kg, or mg and get ml or liters for liquids and staples.

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SIMILAR TOOLS

Last updated: February 15, 2026

Created by: Eon Tools Dev Team

Reviewed by: Radu Vasile

What this does

So you have a weight in grams but you need a volume in millilitres, which happens a lot when a recipe mixes the two. This converter bridges that gap. Enter the grams, pick the ingredient, and it gives you the millilitres or litres that weight takes up. The ingredient matters, because the same weight of a light ingredient fills more space than a heavy one.

How to use it

Enter the amount, and choose grams, milligrams, or kilograms.
Choose millilitres or litres.
Pick the ingredient, then press Calculate.

This works best for liquids and pourable ingredients, where a volume actually makes sense.

Why the ingredient matters

Grams are weight and millilitres are volume, and the bridge between them is density, the weight packed into each millilitre. A dense ingredient squeezes a lot of weight into a small volume, so it takes up fewer millilitres, while a light one spreads out into more.

Water is the easy case, and a useful one to remember: 1 gram of water is 1 millilitre, almost exactly. That is no accident, since the gram was originally tied to water. But 100 grams of honey, which is denser than water, is only about 71 millilitres, while 100 grams of oil, which is lighter, is closer to 109. That is why the tool asks which ingredient you mean.

How the conversion works

Volume is simply the weight divided by the density:

millilitres = grams ÷ density

Density here is grams per millilitre, where water sits at 1. So 100 grams of water is 100 ÷ 1, which is 100 millilitres. For honey at a density of about 1.4, the same 100 grams is 100 ÷ 1.4, or roughly 71 millilitres. Litres are just the millilitres divided by 1000.

Questions people ask

Is 1 gram the same as 1 millilitre?

For water, yes, almost exactly. For anything else it depends on the density, so a gram of oil is a little more than a millilitre and a gram of honey is a little less.

Why do I need to pick an ingredient?

Because volume depends on density. Without the ingredient, there is no way to know how much space a given weight takes up.

Does this work for solids like flour?

It gives the volume that weight would fill, which is most meaningful for liquids and pourable ingredients. For packed solids, the real volume shifts with how tightly they settle.

References

King Arthur Baking. Ingredient Weight Chart. https://www.kingarthurbaking.com/learn/ingredient-weight-chart

Radu Vasile is a gluten-free food creator from Romania who runs The GF Recipes and has built a global community of more than 100,000 followers across his blog, app, and social platforms. With over six years of experience creating food content, he brings practical knowledge of recipe, nutrition, and food focused utility needs. At Eon Tools, he reviews food tools.