acalculator

What is my win percentage?

Enter wins, losses and ties to get the winning percentage. Or enter a target percentage to find the wins or losses that give it.

Your numbers

Win percentage
62.5%

A record of 10 wins, 6 losses and 0 ties is a win percentage of 62.5%.

As in the standings
.625
Games played
16

Win percentage: 62.5%. A record of 10 wins, 6 losses and 0 ties is a win percentage of 62.5%.

How to calculate

Computes a team’s winning percentage from wins, losses and ties (a tie counts as half a win), or the wins or losses that give a target percentage.

Example with the default inputs (Wins 10, Losses 6, Ties 0): A record of 10 wins, 6 losses and 0 ties is a win percentage of 62.5%.

Formula: win % = (W + T ÷ 2) ÷ (W + L + T) × 100: each tie counts as half a win and half a loss.

  • A tie counts as half a win and half a loss, as in NFL standings. With no ties this is wins ÷ games, as in MLB and NBA standings.
  • Wins, losses and ties are from 0 to 1,000,000, and at least one game was played. Solved counts may be fractions; round up to the next whole game for a target.
  • Leagues that rank by points (the NHL, most soccer leagues) use a points percentage instead, which this calculator does not compute.

Machine-readable copies: Markdown, JSON.

Worked examples

Each example is checked against the calculator on every build.

  1. Wins 10, Losses 6, Ties 0 gives Win percentage 62.5%, As in the standings .625, Games played 16.Source: hand calculation in content.mdx: 10 ÷ 16 = 0.625 = 62.5%
  2. Wins 9, Losses 7, Ties 1 gives Win percentage 55.882353%, As in the standings .559.Source: NFL tiebreaking procedures (a tie is half a win and half a loss); hand calculation in content.mdx: (9 + 0.5) ÷ 17 = 0.5588
  3. Win percentage 60%, Losses 62, Ties 0 gives Wins 93.Source: hand calculation in content.mdx: W = 0.6 × 62 ÷ (1 − 0.6) = 93
  4. Win percentage 75%, Wins 12, Ties 0 gives Losses 4.Source: hand calculation in content.mdx: L = 12 ÷ 0.75 − 12 = 4

How it works

Each tie counts as half a win and half a loss:

  • win % = (W + T ÷ 2) ÷ (W + L + T) × 100

W is wins, L is losses and T is ties. With no ties this is wins ÷ games played. Written with p = win % ÷ 100, the same equation gives each count:

  • W = (p × (L + T) − T ÷ 2) ÷ (1 − p)
  • L = (W + T ÷ 2) ÷ p − W − T
  • T = (p × (W + L) − W) ÷ (0.5 − p)

Enter any three of wins, losses, ties and win %. Enter 0 for ties if there were none.

The calculator also shows the percentage as standings print it, with three decimal places and no leading zero (.625, or 1.000 for a perfect record), and the games played, W + L + T. The three places are rounded with halves rounded up: 1–15 is 0.0625, shown as .063.

Assumptions

  • A tie is half a win and half a loss (NFL rule). Without ties, this is the same as MLB and NBA standings.
  • Counts are from 0 to 1,000,000, and at least one game was played. A solved count can be a fraction; for a target, round wins up to the next whole game.
  • Some targets have no answer: 100% with a loss, a percentage that would need a negative count, or a record with no games at all.
  • With no losses and no ties, every record with a game is 100%: a target of 100% fits any number of wins, and any other target has no answer.
  • With no wins and no ties, every record with a game is 0%: a target of 0% fits any number of losses, and any other target has no answer.
  • With as many wins as losses, a target of 50% fits any number of ties. With no wins and no losses, every record with a game is 50%, so any other target has no answer.
  • In these cases the calculator shows a message instead of a number.

Worked examples by hand

A 10–6 season. 10 ÷ (10 + 6) = 10 ÷ 16 = 0.625, which is 62.5% (.625).

A 9–7–1 season. (9 + 1 ÷ 2) ÷ (9 + 7 + 1) = 9.5 ÷ 17 = 0.5588, which is 55.9% (.559).

The wins for .600 with 62 losses and no ties. W = 0.6 × 62 ÷ (1 − 0.6) = 37.2 ÷ 0.4 = 93 wins.

The losses that leave 12 wins at 75%. L = 12 ÷ 0.75 − 12 = 16 − 12 = 4 losses.

Other questions people ask

How do I calculate a win percentage?

Divide the wins by the games played. A 10–6 record is 10 ÷ 16 = 0.625, or 62.5%. Standings print it as .625.

How do ties count?

In the NFL, a tie counts as half a win and half a loss, so win % = (wins + ties ÷ 2) ÷ games. A 9–7–1 record is (9 + 0.5) ÷ 17 = .559. With no ties the formula is simply wins ÷ games.

How many wins do I need for a target percentage?

Enter the target, the losses and the ties, and leave wins empty. With no ties, wins = p × losses ÷ (1 − p), where p is the target as a decimal. For .600 with 62 losses: 0.6 × 62 ÷ 0.4 = 93 wins.

Why do standings show .625 instead of 62.5%?

It is a tradition in American sports standings to show the winning percentage as a decimal with three places and no leading zero. A perfect record is 1.000. Both mean the same thing.

Does this work for hockey or soccer?

Only for a simple win rate. The NHL and most soccer leagues rank teams by points, and their points percentage counts overtime losses or draws differently.