Style Quiz

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Free Interior Design Tools & Calculators

Designers rely on a handful of measurements and rules of thumb. These tools do the math for you, so you can buy the right rug, hang art at the right height and order the right amount of paint the first time.

Interior Design Style QuizFind your style in 8 questionsOpen tool Room Color Palette Generator60-30-10 palettes with hex codesOpen tool Rug Size CalculatorThe right rug size for any roomOpen tool Art Hanging CalculatorExact nail height and spacingOpen tool Room Layout PlannerDrag-and-drop furniture plannerOpen tool Paint CalculatorGallons, primer and costOpen tool Room Lighting CalculatorLumens and a layered lighting planOpen tool Curtain Size CalculatorRod, panel width and lengthOpen tool Decorating Budget PlannerSplit your budget like a designerOpen tool

How to use these tools together

Start with the Interior Design Style Quiz to name the look you are drawn to, then build a color scheme in the Room Color Palette Generator. Sketch your furniture in the Room Layout Planner before you buy anything, and use the Rug Size Calculator and Curtain Size Calculator to size the two items people most often get wrong.

When it is time to shop, the Decorating Budget Planner splits your budget the way designers do, and the Paint Calculator, Room Lighting Calculator and Art Hanging Calculator cover the finishing details. For the thinking behind it all, read our guide to luxury apartment interior design.