Accuracy Calculator

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Calculates the accuracy of a classification model, representing the proportion of correct predictions.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter True Positives (TP), True Negatives (TN), False Positives (FP), and False Negatives (FN) in the units shown.

Step 2

Read Total Predictions and Accuracy in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

True Positives (TP): 90; True Negatives (TN): 85; False Positives (FP): 5; False Negatives (FN): 10

Total Predictions: 190; Accuracy: 0.9210526316 %

True Positives (TP): 60; True Negatives (TN): 50; False Positives (FP): 20; False Negatives (FN): 30

Total Predictions: 160; Accuracy: 0.6875 %

True Positives (TP): 30; True Negatives (TN): 20; False Positives (FP): 40; False Negatives (FN): 10

Total Predictions: 100; Accuracy: 0.5 %

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