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Bowling score calculator

A full ten-pin bowling scorecard you fill in ball by ball. Tap how many pins fell on each throw and it applies the real rules — a strike scores 10 plus your next two balls, a spare 10 plus your next ball, and the 10th frame allows three throws — showing the frame-by-frame grid with X, / and running totals, plus undo and example games from a perfect 300 to a beginner card.

Tennis score trackerA live tennis scoreboard that keeps the whole match for you. Set the player names, best-of-3 or best-of-5, advantage or no-ad games and how the final set is decided — 7-point tiebreak, 10-point match tiebreak or advantage set — then just add points. It counts 0/15/30/40, deuce and advantage, games won by two, tiebreaks first to seven by two, sets and the match, showing the scoreboard, the current server and an undo button.At-bats per home run (AB/HR) calculatorAt-bats per home run shows how often a hitter goes deep: AB/HR = at-bats ÷ home runs. A lower number means more frequent power — elite sluggers sit around one homer every 10–15 at-bats.Basketball rebound percentage (TRB%) calculatorEstimate the percentage of available rebounds a player grabbed while on the court (TRB%).Batting average calculatorCompute a baseball or softball batting average from hits and at-bats.Effective field goal percentage (eFG%) calculatorEffective field goal percentage adjusts the standard FG% to credit three-pointers with the extra point they are worth: eFG% = (FGM + 0.5·3PM) ÷ FGA × 100. It gives a fairer picture of a shooter's efficiency than raw field goal percentage.ERA (earned run average) calculatorEarned run average is the classic pitching stat: the earned runs a pitcher allows per nine innings. ERA = (earned runs × 9) ÷ innings pitched. Innings use the .1 = ⅓, .2 = ⅔ notation, so 180.2 means 180 and two-thirds innings.Field goal percentage (FG%) calculatorField goal percentage is the share of shots a player makes: FG% = field goals made ÷ field goals attempted × 100. It is the most basic measure of shooting accuracy in basketball, though it treats two- and three-pointers alike.FIP (Fielding Independent Pitching) calculatorFIP estimates a pitcher's run prevention using only the outcomes they control — home runs, walks, hit-by-pitches and strikeouts — scaled to look like ERA: FIP = ((13·HR) + (3·(BB + HBP)) − (2·K)) ÷ IP + constant. The league constant (default 3.10) sets FIP to the same scale as league ERA. Innings use the .1 = ⅓, .2 = ⅔ notation.

Open Bowling score calculator and you get an answer straight away, with no account to create. You will find it under Team sports & scoring, with Tennis score tracker and At-bats per home run (AB/HR) calculator for the neighbouring cases.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Bowling score calculator?

A full ten-pin bowling scorecard you fill in ball by ball. Tap how many pins fell on each throw and it applies the real rules — a strike scores 10 plus your next two balls, a spare 10 plus your next ball, and the 10th frame allows three throws — showing the frame-by-frame grid with X, / and running totals, plus undo and example games from a perfect 300 to a beginner card.

What does a concrete case look like?

12 × strike → 300 — the tool shows every step in between, not just the final figure.

When would I actually use this?

Running a league or a tournament: how many fixtures a format produces, how the table resolves ties, and what a team still needs to qualify.

What is the most common mistake?

Comparing two figures produced under different rules. A percentage over ten attempts and one over two hundred are not the same claim; the order of tie-breaks, the way a rating is adjusted and what even counts as an attempt are each set by the competition, not by the sport. The number means something next to the rulebook it came from and very little without it.

How is Bowling score calculator different from Tennis score tracker?

They sit next to each other but answer different questions. Tennis score tracker: a live tennis scoreboard that keeps the whole match for you. Set the player names, best-of-3 or best-of-5, advantage or no-ad games and how the final set is decided — 7-point tiebreak, 10-point match tiebreak or advantage set — then just add points. It counts 0/15/30/40, deuce and advantage, games won by two, tiebreaks first to seven by two, sets and the match, showing the scoreboard, the current server and an undo button. Pick whichever matches what you're starting from — both are free.

Where do the figures come from?

Fixture counts and point totals are pure combinatorics and hold for any competition. The tie-break order is set by each governing body's own regulations — check the one you are actually in.

Further reading

All guides →
ExplainerHow Bowling Scoring Actually Works, and Why a Strike Is Worth More Than TenA strike scores ten plus your next two balls, a spare ten plus your next one. That bonus chain is the entire game — it is why a perfect game is 300 and why alternating strikes and spares scores 200, not the 250 almost everyone guesses.ExplainerHow a Golf Handicap Is Actually Calculated Under the World Handicap SystemBest 8 of your last 20 score differentials, averaged, and no 0.96 multiplier — that disappeared in 2020. Here is the full chain from a gross 92 to a Course Handicap of 17, with the numbers worked out.ExplainerUsage Rate Is Zero-Sum: Five Players Always Add to a Hundred18 shots, 8 free throws and 3 turnovers in 36 minutes gives 29.3 % usage. Five players sharing a team's whole box score get exactly 20 % each — the number is a share, not a skill.ExplainerSix Rebounds Can Beat Ten, and the Difference Is the DenominatorTen rebounds in 32 minutes of a game with 82 boards is 18.3 %. Six rebounds in 18 minutes of the same game is 19.5 % — a better rate from a smaller number.ComparisonERA, FIP and WHIP: Three Answers to One QuestionERA measures what happened, FIP measures only what the pitcher controls without his fielders, WHIP measures traffic allowed. Two pitchers can swap places entirely between them — and the gap between ERA and FIP is a forecast, not a verdict.ComparisonTrue Shooting Percentage, and Why Field Goal Percentage MisleadsField goal percentage counts a three-pointer and a layup as the same event and ignores free throws entirely. eFG% fixes the first problem, TS% fixes both — and the ranking of three players changes at every step.