PPolySim OS

Tumor Growth

Tumors grow fast at first, then slow as they outrun their blood supply. Compare Gompertz and logistic curves bending toward a ceiling.

Tumor GrowthLive

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Presets

Tumors do not grow exponentially forever — they slow as they outstrip their blood supply. Gompertz and logistic models both bend toward a carrying capacity, with growth fastest early on. This shape guides how treatments are timed. Educational tool, not medical advice.

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Data Inspector

Size at day 100955
Time to half-max46 days
Carrying capacity1000

Governing equation

Reading this result: The Gompertz curve reaches half of its 1000-cell ceiling around day 46; growth is fastest early on and flattens as it nears carrying capacity.

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How it works

Unrestricted exponential growth never lasts; nutrient and oxygen limits impose a carrying capacity. The Gompertz and logistic models both capture this S-shaped slowdown, with growth fastest when the tumor is small — a pattern that informs how and when therapies are applied. Educational tool, not medical advice.

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Frequently asked questions

Is this gompertz tumor growth model tool really free?
Yes. Tumor Growth runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.
Do I need to install anything?
No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.
Can I save or share my simulation?
Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.
How accurate are the results?
The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.