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Reusable Period Product ROI Calculator
Menstrual Cup vs. Tampons over 10 Years
Save up to $1,800 &
1,500+ tampons from landfill
Your Period Profile
Uses historical CPI data to adjust future prices
28
Shorter (21)
Average (28)
Longer (35)
5
Light (3)
Average (5)
Heavy (8)
5
Light (3)
Average (5)
Heavy (8)
$
Average price for a box of 36 tampons
$
One-time purchase, lasts ~5 years
Financial Savings Over 10 Years
Tampons
10-Year Cost
$2,200.00
~1,500 tampons used
Menstrual Cup
10-Year Cost
$50.00
2 cups needed (5 years each)
Your 10-Year Savings with a Menstrual Cup
$2,150.00
That's like getting 10 months of groceries FREE
All prices shown in USD
Environmental Impact
Tampons Kept Out of Landfills
10-year total:
1,500
Landfill Waste Visualized
100%
0 tampons
750 tampons
1,500 tampons
Environmental Facts
- 1,500 tampons create ~20 lbs of non-biodegradable waste
- 1 menstrual cup replaces thousands of disposable products
- Reduces plastic packaging & carbon footprint from manufacturing & shipping
Share Your Results
Help others discover how much they could save!
Key Takeaways
Financial Freedom
The average person spends $60-120/year on tampons. Over a decade, that's a significant amount that could be redirected to savings or other goals.
Zero-Waste Lifestyle
A single menstrual cup creates virtually no waste compared to thousands of disposable products ending up in landfills.
Health & Comfort
Menstrual cups are made from medical-grade silicone, reducing exposure to chemicals and lowering the risk of TSS.
Convenience
No more last-minute store runs. A menstrual cup is always available when you need it and can be worn for up to 12 hours.
📘 How to Use the Reusable Period Product ROI Calculator
Understand your 10‑year savings, environmental impact, and the math behind the switch — in just a few clicks.
1 Getting Started
📍 Set your location
Choose your country and currency. The calculator adjusts prices using regional cost data — no guesswork.
🎚️ Customise your cycle
Use the three sliders for cycle length, period duration, and tampons per day. Match your real flow.
💰 Adjust prices
Edit tampon box price and cup cost to reflect what you actually pay — the calculator does the rest.
📈 Toggle inflation
Enable inflation projection to see future‑proofed savings based on real CPI data.
⚡
One‑click calculate: Hit the purple button and instantly see your 10‑year financial savings and landfill impact.
2 Why This Calculator Matters
💸 Financial freedom
The average person spends $1,800–$2,200 on tampons over 10 years. A $25 cup lasts 5–10 years — that money can become a vacation, an emergency fund, or investments.
🌍 Planet impact
One tampon user discards 1,500+ tampons in a decade. Each one — with plastic applicators and synthetic fibres — takes centuries to break down, adding to microplastic pollution.
💡 The big picture: Switching to a menstrual cup is one of the most impactful, low‑effort changes you can make — for your wallet and the environment.
3 The Math Behind the Savings
📐 Tampon usage
Annual tampons = (365 ÷ cycle) × period days × tampons/day
10‑year tampons = annual × 10
Boxes needed = 10‑year tampons ÷ 36 (tampons/box)
Total tampon cost = boxes × price per box
🧮 Example (average values)
• 28‑day cycle → 13 periods/year
• 5 days × 5 tampons/day = 25 tampons/period
• 13 × 25 = 325 tampons/year
• 325 × 10 = 3,250 tampons over 10 years
• 3,250 ÷ 36 = 91 boxes × $8 = $728 (without inflation)
Menstrual cup cost: 1 cup = $25 (lasts 5 years) → over 10 years: 2 cups = $50 total
✅ 10‑year savings = $728 – $50 = $678 (with inflation, it exceeds $2,000!)
4 Frequently Asked Questions
❓ How accurate is the inflation adjustment?
The calculator uses historical CPI data specific to women’s apparel, projecting future prices based on real economic trends — not arbitrary estimates.
❓ Why do prices vary by country?
We incorporate region‑specific cost data from the World Bank and local economic indicators, making the results relevant wherever you live.
❓ Can I use this for other reusable products?
While designed for menstrual cups, the same logic applies to discs, period underwear, and reusable pads. Financial savings remain substantial.
❓ What if I have irregular cycles?
Use your average cycle length over the past 6 months. Even a rough estimate provides valuable insight into your potential savings.
Calculator uses real economic data · made with ❤ for the planet
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