Free Expiry Date Calculator – Calculate Product Expiration
Calculate expiration dates from manufacturing date and shelf life. Status indicators for expired, expiring soon, and valid products. 100% free.
What Is This Tool?
The Expiry Date Calculator determines when a product expires based on its manufacturing date and shelf life duration.
How to Use
Step 1: Enter Manufacturing Date
Select the date the product was made.
Step 2: Enter Shelf Life
Input the product's shelf life in days, weeks, months, or years.
Step 3: View Results
See expiry date and status (Valid/Expiring Soon/Expired).
Status Indicators
| Status | Meaning | Color |
|---|---|---|
| VALID | More than 30 days remaining | Green |
| EXPIRING SOON | 30 days or less remaining | Yellow |
| EXPIRED | Past expiration date | Red |
Common Product Shelf Lives
| Product | Typical Shelf Life |
|---|---|
| Fresh milk | 7-14 days |
| Bread | 5-7 days |
| Eggs | 3-5 weeks |
| Canned goods | 1-5 years |
| Medicine | 1-2 years |
| Cosmetics | 6-24 months |
| Batteries | 5-10 years |
Use Cases
Food Safety
Determine if food products are still safe to consume.
Inventory Management
Track product expiration in stores/warehouses.
Medicine Tracking
Monitor pharmaceutical expiration dates.
Warranty Tracking
Calculate when product warranties expire.
Pantry Organization
Know what needs to be used first.
Quick Presets
- Milk (2 weeks)
- Bread (1 week)
- Medicine (1 year)
- Warranty (2 years)
Understanding Shelf Life
Shelf life is the length of time a product remains usable, fit for consumption, or saleable.
Factors affecting shelf life:
- Storage conditions
- Packaging type
- Product composition
- Preservatives used
Best Before vs. Expiration
| Label | Meaning |
|---|---|
| Best Before | Quality may decline after this date |
| Use By | Do not consume after this date |
| Sell By | Store should sell by this date |
| Expiration | Product is no longer safe |
Frequently Asked Questions
Is food safe after best before date?
Often yes, but quality may be lower. Use judgment.
Does this replace label dates?
No. Always check product labels for official dates.
Can I calculate backwards?
Use manufacturing date to find expiry, not the reverse.
Related Tools
- Days Calculator — Days between dates
- Date Calculator — Add/subtract dates
- Age Calculator — Calculate age
- Deadline Calculator — Project deadlines
Enter your manufacturing date and shelf life above to calculate the expiration date.