Room paint coverage estimator
Estimate paint volume and full-container count for rectangular room walls from explicit dimensions, opening area, coats, waste allowance, coverage rate and container size.
Tool 1.0.0 · formula 1.0.0Open tool →Tools · working now
Useful calculators with visible math.
Every released ICU tool states its inputs, units, formula version, assumptions and unknowns. Core calculations are free, run in your browser, and require no account.
2 released toolsFree core functionalityBrowser-local optional saveClient-side JSON export
Business break-even calculator
Calculate contribution per sale and the whole-sale count required to cover entered fixed costs or an optional target operating surplus.
Tool 1.0.0 · formula 1.0.0Open tool →What “calculated” means here
Outputs are reproducible consequences of the values you enter and the displayed formulas. They are not hidden estimates of product coverage, demand, profit, market conditions or future performance. When a value is unknown, the tool asks for it or leaves the result incomplete.
Future tool concepts still exist.
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Micro-apps keep multi-step local state, recovery and portable JSON instead of doing one calculation.