Free Interior Design Tools & Calculators

Discover your interior design style in 8 questions, from Japandi to Mid-Century Modern, then see it on your own room.

Calculate how much paint you need for any room with cost estimates.

Check furniture spacing and fit: will a sofa, bed, or table fit, with the right clearances and walkways, before you move anything.

See if a sofa will fit through a doorway, with the exact angle to tilt it through.

Get the right area rug size for a living room, bedroom, or dining room from your room dimensions.

Find the right dining table size for your seats and your room, with the clearance you need to pull out every chair.

Get the right coffee table size for your sofa, with the height, length, and spacing that actually work in a living room.

Find the exact height to hang art and pictures using the gallery 57 inch rule, including over a sofa or console.

Find the right TV size for your room and viewing distance, for a living room, bedroom, or home theater.

Estimate interior design cost and designer fees by room, then compare an AI alternative.

Build coordinated palettes and test color direction fast.

Estimate staging cost, price lift, and days-on-market savings.