Step 1
Select mass or volume exactly as specified on the product instructions.
A:B mix ratio
Split a known total or a known amount of part A using the exact A:B ratio and mass or volume basis specified by your product.
MIXKIND / WORKSPACE
Your project, in numbers
Live estimate
Enter the required product data to see a result.
Use the manufacturer’s instructions for the exact product. This calculator does not recommend a formulation, cure schedule, pouring depth or chemical handling procedure.
MIXKIND / THE METHOD
How to use this tool
Known total T: A = T × a ÷ (a + b), B = T × b ÷ (a + b). Known A: B = A × b ÷ a, total = A + B.
Worked example
A hypothetical 2:1 ratio by mass and a 300 g total gives A = 200 g and B = 100 g. A 2:1 volume ratio with a 300 mL total gives 200 mL and 100 mL; it does not imply those gram amounts.
Step 2
Enter the A and B ratio parts. Choose a known combined total or a known amount of A.
Step 3
Read the two components in the selected unit. Use the specified basis when measuring.
Can I switch a mass ratio to a volume ratio?
Changing the basis clears the ratio and amount fields. It does not convert them. Re-enter the ratio supplied for the selected basis.
Does the calculator choose a ratio for me?
No. Ratio fields start blank. Example values are labelled arithmetic examples and must not be used as product instructions.
MIXKIND / TOOLKIT
Four ways to plan the same project.
01
Mold volume
Calculate rectangular or cylindrical mold cavity volume using inside dimensions, quantity and your chosen extra allowance.
Open tool02
Volume & weight
Convert volume to mass, or mass to volume, using the density you enter from the matching product data.
Open tool04
Batch cost
Add up known masses of A and B, your material prices and the number of identical batches. No live prices or currency conversion.
Open tool