Basketball Free Throw Percentage Calculator

Free throw percentage (FT%) is one of the most important statistics in basketball. Unlike field goals, free throws are uncontested shots from a fixed 15-foot (4.57-meter) distance. Nobody is guarding you and the clock is stopped, so what is left is mechanics, routine and composure.

The Free Throw Percentage Formula

FT% = (Free Throws Made / Free Throws Attempted) × 100

Points from the Line

Each made free throw is worth exactly 1 point. Expected points from free throw attempts: Expected Points = Attempts × FT%

Historical Reference Points

Notable historical free throw records:

• Stephen Curry has shot above 90% FT% in most of his seasons and holds the best career mark in NBA history
• Shaquille O’Neal is famous for his poor FT% (~52% career), a vulnerability so exploitable it spawned the “Hack-a-Shaq” strategy
• Jose Calderon holds the best single-season mark, 98.1% in 2008-09, going 151 for 154 from the line

The last two get mixed up constantly, and they are different records. Calderon’s 98.1% is a single season, roughly 150 attempts. A career average runs into the thousands of attempts and barely moves, which is why the all-time career leaders sit around 90 to 91% rather than anywhere near 98%.

The “And-One” and Two-Shot Scenarios

In the NBA, when a player is fouled while shooting and makes the basket (and-one), they shoot 1 free throw. When fouled on a missed field goal, they get 2 free throws. When in the bonus, any foul results in 2 free throws.

Season Projection

If a player shoots X attempts per game over a Y-game season: Total Attempts = X × Y Total Expected Points = Total Attempts × FT%

Improving Free Throw Percentage

The biggest factors in FT% are:

1. Consistent pre-shot routine
2. Arc (higher arc = larger effective target)
3. Follow-through (wrist snap)
4. Mental consistency under pressure

Studies show that deliberate practice of 50–100 free throws per day is enough to improve most players’ FT% significantly within 4–6 weeks.