Coffee Table Size Calculator: Match Your Table to Your Sofa
The coffee table is the piece most people get wrong — too short and it looks like an afterthought, too tall and your knees hit it. The fix is three numbers: length at half to two-thirds of the sofa, height a touch below the seat, and a 14–18″ gap. Our free coffee table size calculator works all three out from your sofa’s dimensions — run the coffee table size calculator before you buy.
Open the Coffee Table Calculator →
What the Coffee Table Size Calculator Tells You (Specifications)
- Inputs: sofa length and sofa seat height, both in inches.
- Ideal table length — 50–66% of the sofa length (e.g. a 96″ sofa wants a 48–63″ table).
- Ideal table height — 1 to 2 inches below the seat height, never above 18″ for standard sofas.
- Sofa-to-table gap — the 14–18″ reach zone, plus a layout note for very long sofas.
How to Use It — Step by Step
- Measure your sofa’s length in inches, arm to arm.
- Measure the seat height — floor to the top of the seat cushion.
- Enter both numbers and hit calculate.
- Shop within the ranges given. If you already own the table, check whether it falls inside them.
- Finish the zone with our rug size calculator — the rug should extend past the table on all sides.
Designer Tips for Coffee Tables
- Round tables soften rooms full of rectangles; rectangular tables suit long sofas.
- Leave the gap. Under 14″ and knees collide; over 18″ and the table is out of reach.
- For sectionals or 96″+ sofas, consider two smaller tables or a table plus ottoman instead of one giant slab.
- Style in thirds: books, something organic, something sculptural — never a cluttered surface.
FAQs
How long should a coffee table be relative to the sofa?
One-half to two-thirds of the sofa’s length. A 84″ sofa pairs with a 42–55″ table.
Should a coffee table be higher or lower than the sofa seat?
Lower — 1 to 2 inches below the seat cushion is the sweet spot.
How far should a coffee table be from the sofa?
14 to 18 inches: close enough to reach your coffee, far enough for legs.
Proportions make the room — open the free coffee table size calculator and get yours right.
