Free resources
Interior Design Tools
Free calculators and guides for planning any room. No sign-up, no paywalls — just instant answers to the most common interior design questions.
Interior Design Style Quiz
8 questions to discover your perfect style — Japandi, Coastal, Dark Academia, and 9 more. No email required.
Take the quiz →
🪴Rug Size Calculator
Enter your room dimensions and get the ideal rug size for living rooms, bedrooms, and dining rooms instantly.
Calculate rug size →
🖌️Paint Coverage Calculator
Room dimensions + number of coats = exact gallons needed. No more buying too much or running short mid-wall.
Calculate paint →
🖼️Wall Art Size Calculator
Find the ideal art or mirror dimensions for any wall using the same rules professional designers follow.
Calculate art size →
Then see it in your room
Once you know your style and have your measurements, our free room design generator lets you visualise it instantly. Pick a style, pick a room, and get a photorealistic design — no software, no account needed to try.
✨ Try the generator freeWhy use a rug size calculator?
The most common decorating mistake is a rug that's too small. A rug that barely peeks out from under a sofa makes a room feel disjointed. Our calculator uses the same 18-inch clearance rules interior designers follow — giving you the right size for "all legs on", "front legs on", or floating configurations.
How much paint do I actually need?
One gallon of paint covers roughly 350–400 sq ft per coat. Our paint calculator subtracts door and window area, factors in your number of coats, and rounds up to the nearest whole gallon — so you buy the right amount and don't waste money on half-empty cans.
The wall art sizing rule designers use
Art should span 57–75% of the wall width behind it. Too narrow and it floats uncomfortably; too wide and it overwhelms. Our wall art calculator gives you a minimum, ideal, and maximum width for any wall, plus the standard hanging height (57–60 inches from floor to centre) that galleries and designers use universally.