How to use (3 steps)
- Enter a reaction and choose the target product and yield.
- Select the base reagent and adjust roles, purity, or solution inputs.
- Copy the reagent table or share the URL.
Quick examples
Reaction setup
Target and base
Reagent inputs
| Name | Role | MW | Form | Purity % | Density | Conc (M) | Eq | mol% | ppm |
|---|
Summary
This result shows the required base amount and reagent amounts for the target yield.
Reagent table
| Name | Role | MW | Stoich | Eq | n (mmol) | Mass (g) | Volume (mL) | Purity % |
|---|
How it's calculated
FAQ
Can I override molar masses?
Yes. You can edit MW values for each species if needed.
What if my product is a solution?
Use the volume or molar unit options and set the product as solution to compute required volumes.
What should I enter first?
Start with the minimum required inputs shown above the calculate button, then keep optional settings at their defaults for a first pass. After getting a baseline, change one parameter at a time so you can explain which assumption moved the output.
How precise are the results?
The calculator keeps internal precision and rounds only for display. Small differences can still appear if another tool uses different constants, period conventions, or rounding rules. Align assumptions before comparing final values.
Why can my result differ from another calculator?
Many tools choose different defaults for units, rate basis, date-count logic, and sign conventions. Verify those defaults first. If differences remain, use the worked example and compare each intermediate step to locate the branch that diverges.
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