Unadjusted Risk Ratio or Relative Risk (RR) CALCULATOR

By providing the counts of events and totals for two different groups or conditions, this calculator swiftly calculates the risk ratio or relative risk (RR) along with its confidence interval, Z-score, and p-value.

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If you want to convert or calculate data for more than one study at the same time, enter data for study 1, study 2, study 3, ...etc, RESPECTIVELY across all cells using the same order.

Conversion Results

Study ID Event 1 Total 1 Event 2 Total 2 C Level RR CI Start CI End Z P-value

Description of the formula

Variables Definitions

Event 1: The number of occurrences of the event in Group 1.

Total 1: The total number of observations in Group 1.

Event 2: The number of occurrences of the event in Group 2.

Total 2: The total number of observations in Group 2.

Confidence Level: The desired confidence level for the confidence interval is expressed as a decimal (e.g., 0.95 for 95%).

For more details about these variables and used formulas, read the full article.