Kaplan-Meier and Log-Rank: Compare Survival

Kaplan-Meier curve with 95% CI, median survival, at-risk table, log-rank and hazard ratio to compare two groups. Downloadable PNG chart.

How to cite this tool

If you use it in your thesis or in a paper, cite it so that readers of your Methods section know how the calculation was done.

Ciudad-Fernández, V. (2026). Kaplan-Meier survival curve calculator [Web application]. Ciudad Science. Retrieved October 14, 2026, from https://analisisdedatospsicologia.com/en/tools/kaplan-meier-calculator

For your Methods section: Survival curves were estimated with the Kaplan and Meier (1958) method, and groups, where present, were compared with the log-rank test, using the Ciudad Science Kaplan-Meier survival curve calculator (Ciudad-Fernández, 2026).

@misc{ciudadfernandez2026kaplanmeier,
  author       = {Ciudad-Fern{\'a}ndez, V{\'i}ctor},
  title        = {{Kaplan-Meier survival curve calculator}},
  year         = {2026},
  publisher    = {Ciudad Science},
  howpublished = {Web application},
  url          = {https://analisisdedatospsicologia.com/en/tools/kaplan-meier-calculator},
  urldate      = {2026-10-14},
  note         = {Accessed 2026-10-14},
}

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