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Both calculators run independently — change the inputs on either side to compare results.

Pregnancy Due Date Calculator

Estimate your due date and current pregnancy week from how many days ago your last menstrual period started, your average cycle length, and the dating method. A quick projection your OB-GYN will refine with early ultrasound.

Days Since Last Period (days)

Average Cycle Length (days)

Calculation Method

First Pregnancy

Fill in the required fields to see your result.

Health

BMR & Daily Calorie Needs Calculator

Calculate Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation, then multiply by an activity factor to estimate Total Daily Energy Expenditure (TDEE) — the calories you burn in a typical day. Use it as the baseline for weight management, sports nutrition, and meal planning.

Weight (kg)

Height (cm)

Age (years)

Gender

Activity Level

Fill in the required fields to see your result.

Key differences

	Pregnancy Due Date Calculator	BMR & Daily Calorie Needs Calculator
Category	Health	Health
Inputs required	4	5
Result	Due Date & Current Week	Daily Calorie Needs (calories)
What it does	Estimate your due date and current pregnancy week from how many days ago your last menstrual period started, your average cycle length, and the dating method. A quick projection your OB-GYN will refine with early ultrasound.	Calculate Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation, then multiply by an activity factor to estimate Total Daily Energy Expenditure (TDEE) — the calories you burn in a typical day. Use it as the baseline for weight management, sports nutrition, and meal planning.