Free Throw Percentage Calculator (Totals or Game by Game)
Divide free throws made by attempts for your free throw percentage — from season totals or a game-by-game log — and see the makes you need to reach a target, a likely range for your true percentage, a league benchmark and what each trip to the line is worth.
How it works
Free throw % = made ÷ attempted × 100 · extra makes (same attempts) = ⌈T × FTA − FTM⌉ · makes needed in N more = ⌈T × (FTA + N) − FTM⌉ · consecutive makes = ⌈(T × FTA − FTM) ÷ (1 − T)⌉ · Wilson range = (p + z²/2n ± z√(p(1−p)/n + z²/4n²)) ÷ (1 + z²/n)
Free throw percentage is the cleanest shooting stat there is: an uncontested shot from a fixed distance, so it reflects touch and routine rather than defence. Enter season totals, or switch to game by game and paste one line per game (7/10); the calculator adds them up so every attempt counts equally, and shows each game, a running percentage and a chart. Set a target to see how many makes you need — among your current attempts, in a number of upcoming attempts, or in a row — and a planning table for 10 to 500 more shots. Because a percentage from a few dozen attempts is noisy, the Wilson score interval gives a likely range for your true percentage. Under More options you can compare yourself with the NBA, college or high school average or your own benchmark (as percentage points and as points gained or lost), and add field goal attempts for free throw rate. A table shows what a trip to the line is worth at your percentage: expected points and the chances of making both, at least one or neither.
Worked example
A player hits 8 of 10 free throws: 8 ÷ 10 = 80.0%. To reach 90% over those same 10 attempts he would need 9 makes — one more. Looking ahead, with 20 more attempts he needs ⌈0.9 × 30 − 8⌉ = 19 makes out of 20, or 10 in a row ((0.9 × 10 − 8) ÷ 0.1 = 10). The 95% Wilson range for 8 of 10 is 49.0% to 94.3% — ten shots say little — and against the 78.4% NBA average he is +1.6 percentage points, about 0.2 points ahead. At 80%, a two-shot trip is worth 1.6 points and he makes both 64% of the time.
Sources: NBA.com — 2023-24 stats survey: league scoring averages (78.4% FT) · Wilson score interval — Wikipedia
Frequently asked questions
What is a good free throw percentage?
The NBA league average was 78.4% in 2023-24, good shooters sit in the mid-80s and elite free-throw shooters reach 90% or more. NCAA Division I teams average around 70–72%, and for high-school players 60–70% is typical; these are the benchmarks under More options.
How do I combine free throw percentages from several games?
Add the makes and the attempts first, then divide — do not average the game percentages. 6/8 (75%), 9/10 (90%) and 4/6 (66.7%) is 19 of 24 = 79.2%, while the average of the three percentages is 77.2%. Game-by-game mode does this for you.
How many free throws do I need to make to raise my percentage?
For a target T, the makes needed in N more attempts are T × (current attempts + N) − current makes, rounded up. The calculator shows this for your upcoming attempts and in a table for 10 to 500 shots, plus how many you would need in a row.
Why does free throw percentage matter in close games?
Trailing teams intentionally foul to stop the clock, sending players to the line. A team full of good free-throw shooters converts those attempts and closes out wins; poor shooters give the opponent life. The trip table shows the difference: at 60% a two-shot trip is worth 1.2 points, at 90% it is 1.8.
What is the likely range of my true percentage?
It is a Wilson score confidence interval: with few attempts your observed percentage can sit far from your real skill. Ten makes in ten tries still leaves a 95% range of about 72% to 100%; after several hundred attempts the range narrows to a few points.
Does free throw percentage predict three-point shooting?
It correlates. Free throw percentage is one of the better available signals of a young player’s underlying shooting touch, and scouts often use it as evidence a player’s three-point shot will develop.
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This calculator is for educational purposes. Double-check important results before acting on them.