Goals Against Average (Gaa) Calculator

Last Updated: Apr 19, 2025

Created by

Saqib Hanif

Saqib Hanif is the CEO and founder of Calculator Value. He builds calculators and educational content across sports, math, and science, and supports a limited set of construction-related calculators. Read full profile

Our Goals Against Average (GAA) Calculator delivers highly accurate results using the standard formula recognized by professional leagues worldwide. The GAA calculation follows the precise formula:

$GAA = \frac{Goals Against}{Time Played} \times Regulation Game Length$

This calculation automatically adjusts for different time units and sport-specific game lengths. For example, if a hockey goaltender allows 3 goals in 120 minutes of play with a regulation game length of 60 minutes:

$\frac{3}{120} \times 60 = \frac{180}{120} = 1.50$

Industry-Standard Formulas: The formulas and methods used in this calculator follow widely accepted standards in Sports.
Careful Verification: The calculator is tested to ensure it behaves correctly across a range of inputs.
Continuous Updates: The calculator is updated as needed to reflect better accuracy and usability.

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The GAA is a statistic used in many sports, especially ice hockey and soccer. It measures the ability of goalkeepers to prevent goals. The GAA shows the average number of goals a goalkeeper allows per game, based on the standard game length, typically 60 minutes.

In this article, I will explain what it is and how it is calculated, along with a formula, a real-world example, and some FAQs.

What is Goals Against Average (GAA)?

Goals Against Average (GAA) is a statistic that measures the average number of goals that a goalkeeper allows per game. It is a crucial metric used to determine the performance of goalkeepers.

a player is playing ice hockey - Goal Agants Average Calculator

What is the GAA Calculator, and how is it Calculated — Formula, Example?

The Goals Against Average Calculator is an online calculator that simplifies the process of calculating GAA. You provide values, and it computes and displays the result in real time once the required input values are provided. Let's see how it works. It uses values such as goals allowed, time played, and game length to compute GAA using a formula.

Let's look at the formula:

GAA = (Goals Allowed x Game Length) / Time Played (in minutes)

Where:

GAA: Goals Against Average

Goals Allowed: The total number of goals scored against the goalkeeper.
Game Length: It is a standard game length, mainly considered 60 minutes.
Time Played: This is the total amount of time the goalkeeper was on the field (in minutes).

GAA Real-World Example

Let's see a real-world example:

Goals Allowed: 3
Time Played: 50 minutes
Game Length: 60 minutes

Let's apply the formula:

GAA = (3 x 60) / 50 = 3.60

Thus, we have calculated GAA is 3.60.

Frequently Asked Questions

What is a good GAA?

These are the key values that indicate performance:

Below 2.00 — it typically indicates a top-tier goalkeeper performance.
2.00 to 3.00 — Indicates above-average performance of the goalkeeper.
3.00+ — Indicates below-average performance and suggests the need for improvement.

Does GAA apply only to ice hockey and soccer?

The GAA is commonly used in ice hockey. It is used, but less commonly, in soccer (you can check out the save percentage calculator) and is also used in other sports in which goalkeepers are involved.