About the Cooking Measurement Converter
This cooking measurement converter switches between volume measures like cups, tablespoons and teaspoons and weight measures like grams and ounces, using real density values for common baking ingredients so a cup of flour and a cup of honey convert to correctly different weights rather than being treated as interchangeable. It is built for the everyday problem of following a recipe written in a different measurement system, or a different unit, from the one your kitchen scale or measuring cups actually use.
How to use the Cooking Measurement Converter
- 1
Enter the amount you want to convert.
- 2
Choose the unit you're converting from and the unit you want to convert to.
- 3
If either side is a weight measure, choose the ingredient — this is what the conversion actually depends on.
- 4
Read the result, along with the equivalent in grams shown underneath for reference.
What people use it for
Following a recipe that uses the other measurement system
Convert a US recipe's cups and tablespoons into grams to use with a kitchen scale, or the reverse for a recipe written by weight.
Scaling a recipe accurately
Weight-based scaling avoids the rounding errors that build up when scaling awkward volume measures like a third of a cup.
Checking a substitution
See the weight equivalent of a volume measure before substituting one ingredient for another with a different density, such as replacing butter with oil.
Why the same cup means a different weight for different ingredients
A cup is a fixed unit of volume, but how much a given ingredient weighs to fill that volume depends on how densely it packs — a cup of honey, which has no air pockets and is denser than water, weighs nearly three times as much as a cup of light, airy rolled oats. This is precisely why recipes that specify weight are more reliable to follow than ones using only cups: weight has one correct value, while a 'cup' of a dry ingredient can vary noticeably depending on how it is scooped or settled.
When the ingredient choice doesn't matter at all
Converting between two volume units, such as tablespoons to cups, or between two weight units, such as grams to ounces, is a fixed ratio that has nothing to do with what is actually being measured — a tablespoon is always three teaspoons regardless of ingredient. The ingredient selector only comes into play when bridging between the two kinds of measurement, volume and weight, which is the only case where density genuinely matters.
Tips
- For genuine baking precision, weigh ingredients directly rather than relying on any cup-to-gram conversion — density varies with how an ingredient is packed, batch to batch.
- Butter is a convenient exception: it is usually sold with weight markings directly on the wrapper, which is more reliable than converting from cups.
- US and metric cups differ by about 5.7% — check which one a recipe means if its origin is unclear.