Skip to content
Calcumatix
en
enEnglishesEspañol

Sports Calculators

Work out the same stats coaches, commentators, and stat sheets use with a growing set of sports calculators. Each tool uses the standard formula for that stat, sourced from the sport's official rulebook or stats glossary, with a worked example on every page.

All Sports Calculators

Scuba Weight Calculator

Estimate the starting lead weight you need for your body weight, equipment, and wetsuit before heading underwater.

Open the Calculator

Slugging Calculator

Calculate slugging percentage and OPS. Enter your singles, doubles, triples, home runs, and at-bats to quickly find these critical baseball stats.

Open the Calculator

Decathlon Score Calculator

Calculate points for any decathlon event using official IAAF formulas. Enter your performance and the event-specific constants to find your score.

Open the Calculator

Erg Pace Calculator

Instantly convert between rowing power output and split time. Enter your watts to find your 500m pace, or enter your pace to find your power output.

Open the Calculator

Deer Scoring Calculator

Estimate the gross and net score of a typical whitetail deer rack. Enter your main beam, tine, and circumference measurements to calculate the score.

Open the Calculator

Smolov Jr Calculator

Generate all 12 sessions of the Smolov Jr loading cycle. Enter your training max and a weekly increment to get exact sets, reps, and weights for each day.

Open the Calculator

ERA Calculator

Find ERA from earned runs, full innings, and outs, while reading a 6.1 box-score line as 6 innings and 1 out, not a decimal.

Open the Calculator

DOTS Calculator

Find a DOTS score from sex, body weight, units, and total, so lifters can compare scores across weight classes for meet checks.

Open the Calculator

Win Rate Calculator

Calculate win rate from wins, losses, and ties, with a tie-adjusted option for sports, games, and season record tracking.

Open the Calculator

Weight-to-Horsepower Ratio Calculator

Compare vehicle performance by lb per hp, hp per lb, and hp per 1,000 lb, with imperial and metric inputs supported for cars.

Open the Calculator

Bowling Handicap Calculator

Find bowling handicap pins per game from avg, basis score, percent, round rule, games bowled, and an optional raw game score.

Open the Calculator

Shooting Percentage Calculator

This shooting percentage calculator finds basketball shot success from makes and attempts, including FG% and field goal percentage.

Open the Calculator

Hockey Goalie Save Percentage Calculator

This hockey goalie save percentage calculator finds SV% from saves and shots faced, using the decimal style seen in hockey box scores.

Open the Calculator

Volleyball Hitting Percentage Calculator

This volleyball hitting percentage calculator finds attack efficiency from kills, errors, and total attacks, including negative results.

Open the Calculator

What You Can Work Out With These Sports Calculators

Sports calculators turn raw box-score numbers into the standard percentages and rates that players, coaches, and fans use to compare performance. Across different sports the idea is the same: take a count of successful actions, divide it by a count of attempts or chances, and express the result as a percentage or a rate. What changes from sport to sport is exactly what counts as a success and what counts as an attempt, which is where most confusion, and most miscalculation, comes from.

Every tool in this section follows the official definition of its stat, states the formula in plain words, and shows a worked example, so the number is easy to trust and easy to redo by hand. Because the same play can often be counted more than one way, each page is careful about what belongs in the numerator and the denominator, and notes where a stat needs context, such as role, opponent, or sample size, rather than standing on its own. For the formulas on their own, see the formula reference.

Related Resources

  • Guides & Blogs . Guides and blog posts on how to use our calculators and understand the concepts behind them.
  • Formulas . The exact formulas behind each calculator, with the notation and reasoning explained.
  • Glossary . Short definitions of the terms you will meet across our calculators, including BMI, BMR, amortization, and more.
  • Methodology . How we choose formulas, test calculations, round results, select sources, and review our tools.

Recent Guides

View All →

Frequently asked questions

What sports stats can I calculate here?

Baseball stats like ERA and slugging, hockey save percentage, volleyball hitting percentage, shooting percentage, decathlon and powerlifting scores, rowing pace, deer antler scoring, and scuba dive weighting, with more added as the collection grows. Each uses the formula from that sport's official stats glossary or governing body.

Are these the official formulas used by leagues and teams?

Yes. Each calculator is verified against the sport's official stats glossary or governing body (for example, the NHL for hockey or NCAA/FIVB rules for volleyball).

Are the sports calculators free to use?

Yes, every tool here is free, with no sign-up and no limit.