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How Much Is 8 Fluid Ounces of Molasses in Grams?

8 fluid ounces of molasses weighs 340.00 g. This is based on molasses having a density of 340g per cup. Because fluid ounces measure volume and grams measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 8 fluid ounces.

8 fluid ounces of molasses
=
340.00g
Result using all fluid ounce standards info
340.00 g (US) 326.65 g (UK Fluid Ounce)
8 fluid ounces of molasses is also
340.00

Formula and Step-by-Step

fluid ounces × 42.5g/fl oz = grams
  1. Start with 8 fluid ounces of molasses
  2. 1 fluid ounce of molasses = 42.5g
  3. 8 × 42.5 = 340g

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

For liquids, place your measuring cup on a flat surface and read at eye level. The bottom of the meniscus (the curve at the surface) should align with the measurement line.

Molasses at Different Amounts

How molasses scales across common fluid ounces measurements. Your amount (8 fluid ounces) is highlighted.

3 fl oz127.5 g4 fl oz170 g5 fl oz212.5 g6 fl oz255 g8 fl oz340 g10 fl oz425 g12 fl oz510 g16 fl oz680 g

For reference, 8 fluid ounces of molasses (340g) is close in weight to a can of soda (355g).

Other Amounts of Molasses

Fluid Ounces US Grams UK Fluid Ounce
1 fluid ounce 42.50 g 40.83 g
2 fluid ounces 85.00 g 81.66 g
3 fluid ounces 127.50 g 122.49 g
4 fluid ounces 170.00 g 163.33 g
5 fluid ounces 212.50 g 204.16 g
6 fluid ounces 255.00 g 244.99 g
8 fluid ounces 340.00 g 326.65 g
10 fluid ounces 425.00 g 408.32 g
12 fluid ounces 510.00 g 489.98 g
16 fluid ounces 680.00 g 653.30 g

Understanding the Units

What is a Fluid Ounce?

A US fluid ounce (fl oz) is a unit of volume equal to 29.574 milliliters or 1/8 of a cup. It measures liquid volume and should not be confused with the ounce (oz), which measures weight.

What is a Gram?

Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.

Frequently Asked Questions

About 340.00 g, based on molasses having a density of 340g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of fluid ounces by 42.5 (grams per fluid ounce for molasses). For 8 fluid ounces: 8 × 42.5 = 340.00 g.
Weighing molasses on a kitchen scale is strongly recommended. It is thick and sticky, so it clings to measuring vessels. If you must measure by volume, lightly oil the measuring cup first so it slides out cleanly.
Temperature has a minimal effect on most cooking liquids. The density of molasses changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.
Reverse the conversion: 340.00 g ÷ 42.5 = 8 fluid ounces. Or use the Grams to Fluid Ounces converter.