To convert fluid ounces of tahini into grams, multiply by 30: one fluid ounce comes to 30 grams. 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 — tahini measures 1.0144 g per mL. That ratio, 101.4%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
This is the pair that catches people out. A fluid ounce is a volume and an ounce is a weight, and they are only the same number for something with the density of water. One fluid ounce of tahini weighs 1.058 oz, so the two readings differ by 5.82% — worth knowing before trusting a recipe that just says "oz".
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.417% of a cup of tahini, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.083 cups, and a 1 kg pack 4.167.
The condition this weight assumes: Well stirred. Sesame paste separates in the jar and the oil that rises is the lightest part of it.
The formula
fluid ounces- The amount of tahini you are converting, in fluid ounces
30- Grams per fluid ounce for tahini, from its density of 1.0144 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in fluid ounces.
- It is multiplied by 30, the grams-per-fluid ounce figure for tahini.
- The result appears in grams, with a second reading in oz beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
3 fl oz of tahini in grams
Take 3 fl oz of tahini: 3 × 30 gives 90 grams. Doubling the batch takes it to 180 grams, because the relationship is a straight proportion once the density is known.
6 fl oz of tahini in grams
Take 6 fl oz of tahini: 6 × 30 gives 180 grams. Doubling the batch takes it to 360 grams, because the relationship is a straight proportion once the density is known.
12 fl oz of tahini in grams
Take 12 fl oz of tahini: 12 × 30 gives 360 grams. Doubling the batch takes it to 720 grams, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many grams are in 1 fl oz of tahini?
One fluid ounce of tahini is 30 grams. Half that quantity is 15 grams and double it is 60 grams, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of tahini not 236 g like water?
Because weight per cup depends on what is in the cup. Tahini has a density of 1.0144 g per mL where water has 1.00, so a cup of it weighs 240 g rather than 236.6 g. That is a difference of 3.4 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. Tahini does not compress, so a cup of it is 240 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 tahini 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 tahini weighs 1.058 oz, so the two readings differ by 5.82%. 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 tahini would weigh 253.61 g instead of 240 g — 13.6 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?
A scale, if the result matters. Volume measuring carries a spread of about 1% for tahini — roughly 2.4 g on a 240 g cup — while a domestic scale is accurate to a gram or two. For anything where the ratio of ingredients drives the outcome, bread and pastry above all, weigh it.
How many fluid ounces of tahini is 500 g?
500 g of tahini is 16.667 fluid ounces — 0.0333333 fluid ounces to one gram, so 500 × 0.0333333 = 16.667. Going that way is a division by 30, or a multiplication by 0.0333333 if you prefer.
Tahini in fluid ounces and grams
| Fluid Ounces | Grams | Unrounded |
|---|---|---|
| 1 fl oz | 30 g | 30 |
| 2 fl oz | 60 g | 60 |
| 3 fl oz | 90 g | 90 |
| 4 fl oz | 120 g | 120 |
| 6 fl oz | 180 g | 180 |
| 8 fl oz | 240 g | 240 |
| 12 fl oz | 360 g | 360 |
| 16 fl oz | 480 g | 480 |
Based on 240 g per cup of tahini. One fluid ounce of tahini is 30 grams.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 240 g | 8.47 oz | 236.6 mL |
| 3/4 cup | 180 g | 6.35 oz | 177.4 mL |
| 2/3 cup | 160 g | 5.64 oz | 157.7 mL |
| 1/2 cup | 120 g | 4.23 oz | 118.3 mL |
| 1/3 cup | 80 g | 2.82 oz | 78.86 mL |
| 1/4 cup | 60 g | 2.12 oz | 59.15 mL |
| 1 tbsp | 15 g | 0.529 oz | 14.79 mL |
| 1 tsp | 5 g | 0.176 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) |
|---|---|---|---|
| Heavy cream | 238 g | 8.395 oz | 1.006 |
| Vinegar | 239 g | 8.43 oz | 1.01 |
| Sour cream | 240 g | 8.466 oz | 1.014 |
| Tahini (this page) | 240 g | 8.466 oz | 1.014 |
| Half-and-half | 242 g | 8.536 oz | 1.023 |
| Egg whites | 243 g | 8.572 oz | 1.027 |
| Whole milk | 244 g | 8.607 oz | 1.031 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.