Clinical tool

Chemotherapy Calendar: Dates of Every Treatment Day

Build the dates of day 1, 8 and 15 of each cycle from the start date and cycle length, and print them for the patient

Updated: 27 October 20261 min read

Enter the start date and the cycle schedule to get the date of every treatment day (printable for the patient).

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An aid for clinicians; it does not replace clinical judgement, local protocols or the drug label. Double-check every result before prescribing.

How it works

Day 1 of each cycle is the day the cycle starts. For example, in a “days 1 and 8 every 21 days” schedule, cycle 2 starts 21 days after day 1 of cycle 1. For a weekly schedule, enter a cycle length of 7 and treatment day 1.

For the patient

The “Print” button prints the list of dates. Remind the patient that each treatment depends on blood tests and how they feel on the day, and may be moved.

This page is based on reputable scientific sources and was last updated on 27 October 2026. The content of this website is for educational and informational purposes only and does not replace consultation, diagnosis or treatment by a specialist physician. Consult your treating physician about any treatment decision.