Percentage weight by volume (w/v) calculator - what is the final volume?

% w/v Volume Calculator (grams → final volume)

Use this free percentage weight/volume (% w/v) calculator to work out the final volume of solution you need to make when you already know how many grams of solute you have and the required % w/v (grams per 100 mL of solution). This is handy for preparing lab solutions, practical chemistry, school/college experiments, and basic biomedical science calculations.

Mass of solute (grams) Required concentration (% w/v) % w/v means g per 100 mL of final solution. Result units millilitres (mL) litres (L) Significant figures (answer) 2 3 4 5 6

---

How % w/v works (quick explanation)

% w/v (weight/volume) is defined as grams of solute per 100 mL of final solution. For example, a 5% w/v solution contains 5 g of solute in every 100 mL of final solution.

How to use this calculator

1. Enter the mass of your solute in grams.
2. Enter the required % w/v.
3. Choose whether you want the answer in mL or L.
4. Choose the number of significant figures to display.
5. Click Calculate volume to see the final volume and the working.

Keywords: percentage w/v calculator, % w/v formula, weight by volume, grams to volume, solution preparation calculator, chemistry calculations, lab solution calculator.