Basketball court dimensions at a glance

MeasurementMetric
Court length (inside edges of end lines)28.00 m
Court width (inside edges of sidelines)15.00 m
Ring height3.05 m
Free-throw line (far edge, from inside of end line)5.80 m
Lane (key) width, outside edges4.90 m
Three-point arc radius6.75 m
Three-point line from sideline0.90 m
No-charge semicircle radius1.25 m
Centre circle radius1.80 m
Our full court slab32 x 19 m
Our half court slab18 x 19 m

FIBA court measurements are taken to the inside edge of the boundary lines. Distances to the free-throw line, the lane and the arcs are taken to the outside edge of those lines. See the line marking cheat sheet for every line converted to centre of line.

28.00 m15.00 m5.80 m4.90 m3-pt 6.75 m

Full basketball court to FIBA dimensions on a slab with run-off.

Half courts and multi-sport

A single hoop end is a good fit for a driveway or school yard: a half court with the hoop at whichever end suits your site. You can also line basketball over netball or tennis on a multi-sport slab. Both options are in the Court Designer.

Marking this court out? Our line marking cheat sheet gives every line dimensioned centre of line to centre of line, ready for the tape machine.

Frequently asked questions

What size is a basketball court?

A full-size FIBA basketball court is 28 m long by 15 m wide, measured to the inside edge of the boundary lines. A half court is about 14 x 15 m.

How high is a basketball ring?

The ring is 3.05 m (10 ft) above the floor. Backboards are 1.80 m wide by 1.05 m high.

How far is the three-point line?

The FIBA three-point arc has a radius of 6.75 m from the point beneath the centre of the ring, with straight sections 0.90 m in from each sideline.

How big should a basketball slab be?

We build full courts on a 32 x 19 m slab and half courts on 18 x 19 m, which leaves run-off space around the lines.

Why are basketball lines measured differently to tennis?

FIBA measures the court size to the inside edge of the boundary lines, so the boundary lines sit outside the 28 x 15 m. Tennis, netball and pickleball are measured to the outside edge, so their lines sit inside the dimensions.

Planning a court?

Design it online in a few minutes, then send it through and we'll come back with straightforward pricing.