Four free ten-pin bowling tools covering score calculation, averages, handicap, and calorie burn. All tools follow standard American Bowling Congress (ABC/USBC) rules.
How bowling is scored
Ten-pin bowling is scored across 10 frames. Each frame allows two deliveries (unless a strike is bowled). A strike (all 10 pins on the first ball) scores 10 plus the next two deliveries. A spare (all remaining pins on the second ball) scores 10 plus the next delivery. The 10th frame is special: a strike in the 10th earns two bonus balls; a spare earns one bonus ball. The maximum score is 300 — 12 consecutive strikes.
All bowling tools
4Ten-Pin Bowling Score Calculator
Calculate a ten-pin bowling score frame by frame, handling strikes and spares correctly.
Open toolBowling Average Calculator
Calculate bowling average, economy rate and strike rate from runs, wickets and overs.
Open toolBowling Handicap Calculator
Calculate your bowling handicap for fair league competition.
Open toolBowling Calorie Calculator
Estimate calories burned bowling over a session.
Open toolFrequently asked questions
What is a perfect game in bowling?
A perfect game is a score of 300 — 12 consecutive strikes across the 10 frames (the 10th frame awards two bonus balls after a strike). The strike bonus system means 12 strikes scores 30 per frame for the first 9 frames, and 30 for the 10th (three balls × 10). Perfect games are rare but achievable — they occur at all competitive levels.
How is bowling handicap calculated?
The standard USBC handicap formula: Handicap = (Base Score − Bowler Average) × Handicap Percentage. The base score is typically 200 or 220; the handicap percentage is usually 80% or 90%. A bowler averaging 150 with a 200 base and 90% handicap: (200 − 150) × 0.9 = 45 pins per game. Handicap allows bowlers of different averages to compete fairly.
What weight ball should I use in bowling?
The general guideline is the heaviest ball you can control comfortably — heavier balls carry more momentum into the pins. Most adult men use 14–16 lb; most adult women use 10–14 lb. Test: hold the ball in your bowling hand for 10 seconds — if your arm trembles or control is lost, go lighter. A properly fitted personal ball will feel lighter than a house ball of the same weight because the finger holes match your hand.