ROI Calculator
Return on Investment
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💡 Quick Tip
Enter what you paid and what you sold for. The calculator shows your return on investment as a percentage. Aim for 100%+ ROI (doubling your money) on most flips.
📚 ROI Knowledge Base
📈 What is ROI & Why It Matters
ROI = Return on Investment
It measures how much money you made compared to what you spent. If you spend $10 and sell for $30, your ROI is 200%.
Formula: ((Sell Price - Cost) / Cost) × 100 = ROI%
Example: Buy for $5, sell for $25
($25 - $5) / $5 × 100 = 400% ROI
Example: Buy for $5, sell for $25
($25 - $5) / $5 × 100 = 400% ROI
🎯 What's a "Good" ROI?
It depends on how fast items sell:
Fast sellers (< 30 days): 50-100% ROI is acceptable
Medium sellers (30-90 days): Aim for 150-200% ROI
Slow sellers (90+ days): Need 300%+ ROI to be worth it
Medium sellers (30-90 days): Aim for 150-200% ROI
Slow sellers (90+ days): Need 300%+ ROI to be worth it
The Time Factor: A 100% ROI in 1 week beats a 500% ROI that takes 6 months. Your money is "stuck" in inventory.
⚠️ The Hidden Cost: If $1,000 is tied up in slow inventory for 6 months, you've lost the opportunity to flip that money 6-12 times on faster items.
💰 ROI Targets by Category
Minimum ROI targets (after all fees):
- Clothing: 200%+ (cheap to buy, slow to sell)
- Electronics: 50-100% (expensive to buy, fast to sell)
- Books/Media: 300%+ (very cheap, very slow)
- Shoes: 150-200% (moderate speed)
- Toys/Games: 100-200% (seasonal spikes)
Pro Strategy: Mix fast/low-ROI items with slow/high-ROI items. Fast sellers pay the bills; slow sellers build wealth.