Health & Fitness

Ovulation Calculator

Estimate ovulation day and fertile window from the first day of your last period and average cycle length.

Inputs

First Day of Last Period

Cycle Length (days)

Result

Enter a date—

Health & Fitness

Compute Body Mass Index and category.

Health & Fitness

Basal Metabolic Rate using the Mifflin–St Jeor equation.

Health & Fitness

Total Daily Energy Expenditure based on activity level.

Health & Fitness

Daily calorie target for losing, maintaining or gaining weight.