Rug Size Calculator
Get your recommended rug size, then see it to scale in 3D and resize it yourself
About This Tool
Rug Size Calculator
Updated June 2026 with a new 3D visualizer to see your rug to scale.
Recently upgraded: this rug size calculator now comes with a 3D color visualizer. The wrong rug size is the most common design mistake in any room, so we made the answer something you can see, not just a number. Enter your room dimensions and furniture layout and it recommends the exact rug size using the placement rules interior designers follow, then shows that size to scale in a real 3D room you can orbit and resize by dragging. New: recolor three surfaces with named swatches, the rug (ivory wool, jute, taupe, sage, terracotta, indigo, charcoal), the walls (popular paint shades like White Dove, Revere Pewter, Agreeable Gray, and Hale Navy), and the wood floor (white oak, golden honey, greige, walnut, espresso), so you can test a full color scheme before you buy a single thing. Built on dimensional standards from 2,000+ Debora Interiors projects.
What You Get
Personalized estimates based on your specific measurements
Results update instantly as you adjust inputs
Professional tips and product recommendations included
Free to use with no sign-up required
Pro Tip
Results are estimates based on standard measurements. For a personalized assessment tailored to your specific project, book a free consultation with our design team.
Step by Step
How to Use This Calculator
Enter room dimensions
Input the length and width of your room in feet.
Select room type
Choose living room, bedroom, dining room, or other room type for tailored recommendations.
Add your furniture
Pick your seating layout, bed size, or number of dining seats so the rug is sized to the furniture, not just the room.
Get size recommendation
See the recommended rug size with placement tips and common alternatives, then resize it in the 3D view.
Common Questions
Frequently Asked Questions
What size rug do I need for a living room?
For a living room, the rug should be large enough that all front legs of seating furniture rest on it. A 12x16 room typically needs an 8x10 or 9x12 rug. The key rule: leave 12-18 inches of bare floor between the rug edge and the walls.
How big should a rug be under a dining table?
A dining room rug should extend at least 24 inches beyond all sides of the table so chairs remain on the rug when pulled out. For a 6-person table (roughly 36x72 inches), you need at least a 7x10 rug. For an 8-person table, go with 8x10 or 9x12.
What size rug goes under a queen bed?
For a queen bed, use an 8x10 rug placed so it extends about 2 feet on each side and at the foot. Alternatively, two 2x3 or 3x5 runners on each side work well. The rug should extend at least 18 inches beyond each side of the bed.
Should a rug go under furniture or in front of it?
In living rooms, place at least the front legs of sofas and chairs on the rug. This visually anchors the seating area. In bedrooms, the rug typically goes under the lower two-thirds of the bed. A rug that floats in the middle of a room with no furniture on it looks disconnected.
What are the most common rug sizes?
Standard rug sizes include 5x7, 6x9, 8x10, 9x12, and 10x14. For runners, common sizes are 2x6, 2x8, and 2x10. Round rugs come in 4, 6, and 8-foot diameters. When between sizes, always go larger.
How much floor should show around a rug?
Leave 12-18 inches of bare floor between the rug edge and walls in standard rooms. In smaller rooms, 8-12 inches works. In large open-concept spaces, you can leave up to 24 inches. Consistent spacing on all sides creates a balanced look.
Can I see different rug colors in my room?
Yes. The 3D visualizer lets you switch the rug between seven material colors, including ivory wool, natural jute, taupe, sage, terracotta, indigo, and charcoal. Each one renders to scale in your room so you can judge how the color reads at full size before you buy.
Can I preview wall paint and wood floor colors together?
Yes. Beyond the rug, you can recolor the walls and the wood floor at the same time. Try popular paint shades like White Dove, Revere Pewter, Agreeable Gray, or Hale Navy against wood floor tones such as white oak, golden honey, greige, walnut, or espresso, so you can test a full color scheme in one place.
Do the colors match real paint and flooring shades?
The swatches are modeled on popular real-world paint colors and wood floor tones interior designers use often, so the previews are close to what you would get from common shades. Use them to compare combinations and narrow your direction. For an exact match, confirm with physical paint and flooring samples before you purchase.
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