Due Date Calculator
Calculate your estimated due date based on your last menstrual period or conception date. Track your current week and trimester.
Inputs
Results
Estimated Due Date
3/22/2026
Estimated Conception Date6/29/2025
Current Week41 weeks
Trimester3
Days Remaining0 days
Progress100%
1st Trimester Ends9/7/2025
2nd Trimester Ends12/21/2025
Estimated Due Date
3/22/2026
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Calculate From — Calculation method to use. Choose from: Last Menstrual Period (LMP), Conception Date. default: 0.
- Month — Month (1-12). Accepts values from 1 to 12 (default: 6).
- Day — Day of the month. Accepts values from 1 to 31 (default: 15).
- Year — The year to check. Accepts values from 2,020 to 2,030 (default: 2,025).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Estimated Due Date — your calculated result. This is the primary result of this calculator.
- Estimated Conception Date — your calculated result.
- Current Week — shown as a numeric value.
- Trimester — shown as a numeric value.
- Days Remaining — shown as a numeric value.
- Progress — shown as a percentage.
- 1st Trimester Ends — your calculated result.
- 2nd Trimester Ends — your calculated result.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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