To convert grams of molasses into millilitres, multiply by 0.70204224: one gram comes to 0.70204224 millilitres. Every ingredient has its own figure here, because the units are measuring different things and only the density links them.
Put next to water — 1 g per mL exactly — molasses measures 1.4244 g per mL. That ratio, 142.4%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
Molasses has a density of 1.4244 g per mL, so 100 mL of it weighs 142.4 g and 250 mL weighs 356.1 g. That single figure is what every other number on this page is built from — water is 1.00 g per mL, so this ingredient is 142.4% as heavy as the same volume of water.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.297% of a cup of molasses, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 1.484 cups, and a 1 kg pack 2.967.
What the number depends on: What is left after sugar crystallises out, so almost all of its weight is dissolved solids.
The formula
grams- The amount of molasses you are converting, in grams
0.702042244807- Millilitres per gram for molasses, from its density of 1.4244 g/mL
millilitres- The equivalent quantity in millilitres
How it works, step by step
- Enter the quantity in grams.
- It is multiplied by 0.702042244807, the millilitres-per-gram figure for molasses.
- The result appears in millilitres, with a second reading in tsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
50 g of molasses in millilitres
50 g of molasses weighs out at 35.1021 millilitres. Divide 35.1021 by 0.70204224 and you get back to 50 g, which is the quickest check that the factor is the right way up.
150 g of molasses in millilitres
Take 150 g of molasses: 150 × 0.70204224 gives 105.306 millilitres. Doubling the batch takes it to 210.613 millilitres, because the relationship is a straight proportion once the density is known.
500 g of molasses in millilitres
500 g of molasses weighs out at 351.021 millilitres. Divide 351.021 by 0.70204224 and you get back to 500 g, which is the quickest check that the factor is the right way up.
How to read your score
Frequently asked questions
How many millilitres are in 1 g of molasses?
One gram of molasses is 0.70204224 millilitres. Half that quantity is 0.351021 millilitres and double it is 1.40408 millilitres, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of molasses not 236 g like water?
Because weight per cup depends on what is in the cup. Molasses has a density of 1.4244 g per mL where water has 1.00, so a cup of it weighs 337 g rather than 236.6 g. That is a difference of 100.4 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Barely. Molasses does not compress, so a cup of it is 337 g however it is poured — within about 1%, which is inside the accuracy of a domestic scale. This is the group where measuring by volume is defensible.
Is a fluid ounce of molasses the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of molasses weighs 1.486 oz, so the two readings differ by 48.6%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of molasses would weigh 356.1 g instead of 337 g — 19.1 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One millilitre of molasses is 1.424 g, and a scale reading to the nearest gram is working at 70.2% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How much does 15 mL of molasses weigh?
15 mL of molasses comes to 21.366 g, or 21.366 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the ml-to-grams page does it in the direction the question is usually asked.
Molasses in grams and millilitres
| Grams | Millilitres | Unrounded |
|---|---|---|
| 5 g | 3.51021 mL | 3.510211224 |
| 10 g | 7.02042 mL | 7.020422448 |
| 25 g | 17.5511 mL | 17.55105612 |
| 50 g | 35.1021 mL | 35.10211224 |
| 100 g | 70.2042 mL | 70.20422448 |
| 125 g | 87.7553 mL | 87.7552806 |
| 150 g | 105.306 mL | 105.3063367 |
| 200 g | 140.408 mL | 140.408449 |
| 250 g | 175.511 mL | 175.5105612 |
| 300 g | 210.613 mL | 210.6126734 |
| 500 g | 351.021 mL | 351.0211224 |
| 1000 g | 702.042 mL | 702.0422448 |
Based on 337 g per cup of molasses. One gram of molasses is 0.70204224 millilitres.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 337 g | 11.9 oz | 236.6 mL |
| 3/4 cup | 252.8 g | 8.92 oz | 177.4 mL |
| 2/3 cup | 224.7 g | 7.92 oz | 157.7 mL |
| 1/2 cup | 168.5 g | 5.94 oz | 118.3 mL |
| 1/3 cup | 112.3 g | 3.96 oz | 78.86 mL |
| 1/4 cup | 84.25 g | 2.97 oz | 59.15 mL |
| 1 tbsp | 21.06 g | 0.743 oz | 14.79 mL |
| 1 tsp | 7.021 g | 0.248 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Peanut butter | 258 g | 9.101 oz | 1.091 |
| Sweetened condensed milk | 306 g | 10.79 oz | 1.293 |
| Maple syrup | 322 g | 11.36 oz | 1.361 |
| Corn syrup | 328 g | 11.57 oz | 1.386 |
| Agave nectar | 331 g | 11.68 oz | 1.399 |
| Molasses (this page) | 337 g | 11.89 oz | 1.424 |
| Honey | 340 g | 11.99 oz | 1.437 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.