Hi Julie,

I found information to help answer your question at SImetric, a site in the United Kingdom that has metric conversions and other useful information.

First I found that 1 tsp is approximately 5 ml. That was the easy part. Then I looked for the specific gravity of salt. For this I found the following information on their Density of bulk materials page.

Material	kg/cu.m.
Salt, course	801
Salt, fine	1201

The moisture content of the salt might also make a significant difference to the specific gravity, and hence the weight of a quarter teaspoon of salt.

In any case let me do the calculation based on a quarter teaspoon of fine salt, using the data above. Depending on the use you plan to make of this you may need to have a obtain better information on the specific gravity of the salt you are using.

From the information above a cubic meter of fine salt weighs 1201 kilograms. One kilogram is 1000 grams and hence one cubic meter weighs 1201000 grams. One meter is 100 centimeters and hence a cubic meter is 100³ = 1000000 cubic centimeters. Thus

1000000 cc weighs 1201000 grams

or

1201000/1000000 = 1.201 gm/cc

One ml is a cc so one tsp is approximately one cc and hence one tsp of fine salt weighs approximately

1.201 5 = 6.005 gm.

Penny

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