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Reagent table & reaction scale calculator

Scale reactions from a base amount and generate a reagent table with eq/mol%/ppm ratios, masses, and volumes for lab-ready prep.

ppm is treated as molar ratio relative to the base (eq x 1,000,000), not mg/L.

All calculations run in your browser; no input values are sent to a server.

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How to use (3 steps)

  1. Enter the base compound and choose how you know its amount (mmol, mass, or solution).
  2. Add reagents and set each ratio as equiv, mol%, ppm, or a fixed amount.
  3. Copy the reagent table, export CSV/TSV, or share the URL.

Quick examples

Base (reference)

Reagents

Equiv, mol%, and ppm are relative to the base. Fixed amount locks a reagent amount and back-calculates eq. Tip: type THF, DCM, Et3N, or DIPEA to auto-fill MW and density.

Solvent (optional)

Results

This table summarizes mmol, mass, and volume for each line based on the base reference.

# Name Role MW Purity Eq mmol Mass Volume Notes

How it's calculated

Use this page when one base scale controls the whole recipe

This reagent table is for translating equivalents, mol%, ppm, densities, and stock concentrations into one shareable prep sheet. Switch to Limiting Reagent & Yield when stoichiometric bottlenecks matter first, open Catalyst Loading for quick loading conversion, and use Solution Preparation Recipes when the task is stock or dilution prep rather than a reaction table.

FAQ

What does this reagent table calculator output?

It converts equiv, mol%, or ppm ratios into mmol, mass (g), and volume (mL) for each reagent. Then it builds a reagent table you can copy, export, or share.

How are ppm and mol% defined here?

Here, ppm is a molar ratio relative to the base (eq x 1,000,000). mol% is eq x 100. This tool does not use solution ppm in mg/L.

What should I do first on this page?

Start with the minimum required inputs or the first action shown near the primary button. Keep optional settings at defaults for a baseline run, then change one setting at a time so you can explain what caused each output change.

Why does this page differ from another tool?

Different pages often use different defaults, units, rounding rules, or assumptions. Align those settings before comparing outputs. If differences remain, compare each intermediate step rather than only the final number.

How reliable are the displayed values?

Values are computed in the browser and rounded for display. They are good for planning and educational checks, but for regulated or high-stakes decisions you should validate assumptions with official guidance or professional review.

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