OneFreePlace
FREE ONLINE TOOL

Free Paint
Calculator

Free advanced paint calculator for multi-room projects and custom areas, with walls, ceilings, trim, openings, coats, primer, waste/touch-up, editable coverage, metric/imperial units, package optimization, optional cost optimization, coverage sensitivity, CSV export and local persistence.

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FreeUse this tool without paying.No sign upStart with the tool right away.Clear stepsRead the tool’s own guidance.

About Free Paint Calculator

Build a multi-room project or enter measured areas directly. Subtract doors and windows, keep wall, ceiling and trim paint separate, add primer and touch-up allowance, then optimize real can sizes for minimum leftover or lowest entered cost.

Workspace options

  • Measurement system
  • Project name · optional
  • Area per door
  • Area per window
  • Extra trim / door paint area
  • Walls

Available actions

  • Multi-room project
  • Measured areas
  • + Add another room
  • Remove last room
  • Copy paint report
  • Export CSV