health
Ovulation Calculator
Calculate ovulation with our free online tool. Get instant results with helpful explanations and tips for better understanding.
入力
計算に必要な値を入力してください
結果
計算結果を表示
計算する値を以下に入力してください
What is an Ovulation Calculator?
An Ovulation Calculator predicts fertile days and ovulation timing based on menstrual cycle length, helping with family planning.
使用方法
Enter the first day of your last period and average cycle length. The calculator shows predicted ovulation and fertile window.