Enter the final weight (g), the initial weight (g), and the sample volume (mL) into the Total Soluble Solids Calculator. The calculator will evaluate the Total Soluble Solids. 

Total Soluble Solids Formula

The following formula is used to calculate the Total Soluble Solids. 

TSS = (Wf - Wi) * 1,000,000 / SV


  • TSS is the Total Soluble Solids (mgTSS/L)
  • Wf is the final weight (g) 
  • Wi is the initial weight (g) 
  • SV is the sample volume (mL) 

To calculate the TSS, multiply the change in weight by 1,000,000, then divide by the sample volume.

How to Calculate Total Soluble Solids?

The following steps outline how to calculate the Total Soluble Solids.

  1. First, determine the final weight (g).
  2. Next, determine the initial weight (g). 
  3. Next, determine the sample volume (mL). 
  4. Next, gather the formula from above = TSS = (Wf – Wi) * 1,000,000 / SV.
  5. Finally, calculate the Total Soluble Solids.
  6. After inserting the variables and calculating the result, check your answer with the calculator above. 

Example Problem:

Use the following variables as an example problem to test your knowledge.

final weight (g) = 30

initial weight (g) = 15

sample volume (mL) = 50

TSS = (Wf – Wi) * 1,000,000 / SV =  ?