Calculadora de Ovulação
Calculate your fertile window, ovulation date, period dates, and cycle phases for up to 6 future cycles. All calculations run entirely in your browser — no data is sent to any server.
Typical: 21–35 days
Cycle Predictions
→ Thu Jun 25, 2026
→ Mon Jul 6, 2026
→ Thu Jul 23, 2026
→ Mon Aug 3, 2026
→ Thu Aug 20, 2026
→ Mon Aug 31, 2026
How to read your results
The fertile window is the 5 days before ovulation plus ovulation day — when pregnancy is possible. These are estimates based on average cycle patterns. Actual ovulation can vary by several days due to stress, illness, or hormonal changes. Use ovulation test strips for precision.
How it works
This calculadora de ovulação runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
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