Days of Inventory Calculator
Calculate how many days your current warehouse stock will last based on run-rate sales.
Calculator Inputs
Manufacturing or procurement cost per unit
Box, polybag, tape, inserts
Courier shipping charge per order
Platform fee percentage
Fixed closing or pick-and-pack fee
Expected advertising cost %
Non-delivery COD return percentage
Target profit amount per order
Final buyer listing price
Unit procurement cost
Standard 18% GST on platform fees
Strike-through discount badge
Undamaged stock returned to inventory
Profit margin before ad spend
Calculation Results
Live updating metrics
Platform Profitability Comparison Matrix Best:
| Metric | Amazon | Flipkart | Meesho | D2C Store |
|---|---|---|---|---|
| Selling Price | ||||
| Commission | ₹0.00 (0%) | |||
| Shipping Freight | ||||
| RTO Buffer Loss | ||||
| Net Profit Per Order |
How This Calculation Works
Shows how many days until stock runs out at your current sales velocity.
💡 Realistic Indian E-Commerce Example
Current warehouse stock = 600 units. Selling 20 units/day. Days of Inventory = 30 days remaining.
Frequently Asked Questions
Common queries about this calculation methodology
Related Seller Calculators
Want to know your ACTUAL marketplace profit?
Calculators give you estimates before you sell. Upload your actual Amazon, Flipkart, or Meesho settlement & GST tax reports to SellerUstad to calculate true SKU-level net profitability after actual platform deductions, returns, and recoverable taxes.