Expiry Calculator 2026: Manufacturing Date + Shelf Life Made Simple
Free online expiry date calculator for medicines, food, cosmetics, cement, visa, passport, and more. Get accurate expiry dates in seconds — India-focused and 2026 updated.
Manufacturing date & expiry date calculator
Enter the manufacturing date and shelf life (in months). Our tool instantly gives expiry date & remaining days. Perfect for medicines, food, cosmetics, cement, and packaged goods.
Formula: Expiry date = Manufacturing date + Shelf life (months). Standard pharmaceutical & FSSAI guidelines.
How is expiry date calculated? (Formula & examples)
The universal expiry calculation formula is: Expiry Date = Manufacturing Date + Shelf Life (in months/days/years). Regulatory bodies like CDSCO (India), USFDA, and FSSAI mandate stability testing to assign shelf life. For most drugs, shelf life = 24–60 months based on accelerated stability data.
📌 Step-by-step manual calculation
- Step 1: Note manufacturing date (e.g., 15 March 2026).
- Step 2: Determine shelf life in months (e.g., 24 months for paracetamol).
- Step 3: Add months to manufacturing date → expiry = 15 March 2028.
- Step 4: If remaining days < 0, product is expired. Use our calculator above.
📊 Common product expiry guidelines (India & global)
| Product category | Typical shelf life | Expiry calculation example |
|---|---|---|
| 💊 Medicines (tablets/capsules) | 24–48 months | MFG: Jan 2026 + 36 months = Jan 2029 |
| 🍱 Packaged food (FSSAI) | 6–24 months | MFG: 01/04/2026 + 12m = 01/04/2027 |
| 💄 Cosmetics / Perfume | 12–36 months (unopened) | MFG: 10/2026 + 30m = 04/2029 |
| 🏗️ Cement (OPC / PPC) | 3 months from bagging | MFG: 01/02/2026 + 90 days = 02/05/2026 |
| 🛂 Passport (India) | 10 years (adult) / 5 years (minor) | Issue date + 10 years = expiry |
| ✈️ Visa (e.g., UAE, Schengen) | Based on validity period | Issue date + duration = expiry |
Pro tip: For medicines, always check for "Expiry" printed on strip. For loose tablets, calculate using manufacturing date on primary container as per pharmacy best practices.
Specialised expiry calculators: visa, passport, patent, options
🇮🇳 Passport expiry date calculator: For Indian passport, expiry = date of issue + 10 years (adult). For minors = 5 years. Re-issue passport expiry carries fresh tenure. Visa expiry calculator depends on grant letter; e-visa often 30/60/90 days from arrival.
⚖️ Patent expiry calculation (Brazil & India): Patent term = 20 years from filing date (Indian Patents Act, 1970). For Brazil, also 20 years. For pharmaceuticals, patent expiry influences generic entry. Our tool helps estimate base patent expiry.
📈 Bank Nifty option expiry & margin calculation: On weekly expiry (Thursday), premium decay accelerates. "Bank Nifty option expiry margin calculator" uses SPAN + exposure margin. STT calculation on expiry = 0.05% on sell side for options. Ce and Ce calculation on expiry for sell side: max profit = premium received; risk unlimited. Use our expiry logic for risk assessment.
📆 Cheque expiry date calculator: In India, cheques are valid for 3 months from issue date. Post that, they become stale. Example: issue date 10 Jan 2026 → expiry 10 April 2026.
🧪 Expiry date calculation in pharmaceuticals (ICH Q1E): Real-time stability studies determine retest period. Formula often uses regression analysis. For pharmacists: expiry = manufacturing date + shelf life months. Use our calculator for quick results.
📌 Excel & PHP expiry formula (developers corner)
Expiry date calculation in excel: =EDATE(manufacturing_date, shelf_life_months). Example: =EDATE(A2,24) gives expiry after 2 years. For PHP: $expiry = date('Y-m-d', strtotime($manufDate.' + '.$months.' months')); Automatically calculate expiry date in PHP & JavaScript. We also provide expiry calculation with holidays feature in advanced codes.
Near expiry calculator: To find products expiring within 3 months, subtract today from expiry date. Our interactive tool shows days left instantly.
Exclusive insider checklist: how to calculate expiry date of any product
- Medicine expiry: Check blister pack: “MFG: 02/2026, EXP: 02/2028”
- Food expiry: Look for “Best before” or “Use by” on label. Apply + shelf life months.
- Perfume expiry: Unopened ~36 months; opened 12-24 months. Use calculator with MFG date.
- Visa expiry (UAE, India): Issue date + visa duration. Avoid overstay penalties.
- Cement expiry: 3 months from bag packing → strength reduces.
- Credit card expiry: MM/YY on card (last day of month).
- Option expiry (NSE/BSE): Weekly expiry Thursday; European style settled.
💡 Quick formula memory: Expiry = MFG + (shelf life). For pharmaceuticals, use CDSCO stability data; for cosmetics, PAO symbol shows months after opening.
Frequently asked questions (expiry calculator)
Look for manufacturing date on pack, add shelf life (typically 24-48 months). Use our expiry calculator above.
Not yet, but CDSCO recommends checking expiry on labels. Our web tool matches standard pharmaceutical formula.
Cement retains strength up to 3 months from bagging date. Calculate: MFG date + 90 days → expiry.
Check visa issue date & duration of stay. E.g., issued 1 March 2026, 30-day visa expires on 30 March 2026.
It helps estimate time decay. Use margin calculator separately, but expiry day math uses premium and lot size.
Refer to PAO symbol (e.g., 12M). MFG date + 12 months = expiration. Our calculator works perfectly.
Near expiry refers to contracts with < 7 days left. Useful for intraday or premium sellers.
Important legal & medical disclaimer
TotalCalcHub provides the expiry calculator for informational purposes only. Expiry estimates may differ from actual manufacturer data. Always verify physical product labels, consult a pharmacist for medicine expiry, and refer to official visa/passport authorities. Calculations based on generic shelf-life assumptions; not a substitute for professional advice. Updated for 2026 standards.
🇮🇳 For India-specific regulatory info, refer to CDSCO (drugs) & FSSAI (food). By using this tool, you agree to our terms of service.