Planning
Paint Calculator
Enter room dimensions to calculate exactly how many gallons you need.
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Free Design Tools
Interior Design Calculators
Calculate paint quantities, budgets, rug sizes, curtain lengths, sofa dimensions, lighting needs, room costs, and much more using formulas from 2,000+ projects.
Type:
Type:
Budgeting
Furniture Budget Calculator
Estimate costs for 12 room types across 4 style tiers with item toggles and designer trade discounts.
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Measurement
Rug Size Calculator
Enter room dimensions and get the perfect rug size recommendation.
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Budgeting
Room Design Cost Calculator
Estimate professional interior design costs for your project.
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About Our Tools
Why Use Our Design Calculators?
Every calculator is built from data collected across 2,000+ completed interior design projects. Get accurate estimates for paint, furniture budgets, rug sizes, and room design costs before you spend a dollar.
What You Get
Estimates based on real project data, not generic formulas
Results update instantly as you adjust inputs
Professional tips and product recommendations included
Free to use with no sign-up required
Did You Know
These calculators use the same formulas our designers use internally. The difference with a consultation? Room-specific adjustments, trade discount access (15-25% off retail), and a curated shopping list tailored to your style.
Step by Step
How It Works
01
Pick a Calculator
Browse our collection above and choose the tool that matches your project needs.
02
Enter Your Details
Input your room dimensions, style preferences, and project specifics.
03
Get Instant Results
See your personalized estimate with a detailed cost breakdown and pro tips.
04
Book a Consultation
Want expert guidance? Our designers can refine these estimates for your exact space.
Ready for Professional Help?
Our designers can help you make the best decisions for your space. Book a free consultation to discuss your project.
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