Time & Date Calculators

Pregnancy Due Date Calculator

Estimate expected due date using last menstrual period (LMP) or conception date.

Method

Date

Cycle Length (days, for LMP)

Result

ErrorEnter a valid date

Pregnancy Due Date Formula

LMP method uses 280 days (40 weeks) from LMP, adjusted by cycle length. Conception method uses 266 days from conception.

Pregnancy Due Date Example Calculation

LMP Jan 1 with 28-day cycle gives estimated due date around Oct 8.

Frequently Asked Questions about Pregnancy Due Date

Is this a medical diagnosis?

Related Calculators

Countdown Calculator

Calculate the number of days until a future date or event.

Date Difference

Calculate the number of days, weeks, and months between two dates.

Weeks Between Dates

Calculate the number of weeks between two dates.

Age Calculator

Calculate your exact age in years, months, and days from your date of birth.

Time Duration

Calculate the duration between two times in hours, minutes, and seconds.

Time Difference

Calculate the difference between two times or time zones.

Popular Tools

VAT Calculator

Calculate VAT (Value Added Tax) quickly. Add VAT to a price or remove VAT from a gross amount with our free online VAT calculator.

Percentage Calculator

Calculate percentages easily. Find what percent one number is of another, or calculate the percentage of a number.

Loan EMI Calculator

Calculate your monthly loan EMI (Equated Monthly Installment). Find out your monthly payment, total interest, and total amount payable.

Profit Margin Calculator

Calculate profit margin percentage from cost and revenue. Find gross profit margin, net profit margin, and markup percentage.

SMV Calculator

Calculate Standard Minute Value for garment operations. Essential for production planning and costing.

Line Efficiency

Calculate sewing line efficiency with all required IE fields: day production, SMV, manpower, working hours, and target/day.