Stock Average Calculator
Calculate average buy price across multiple purchases.
Inputs
Leave unused rows empty. Max 20 entries.
Total Quantity
0
Total Invested
₹0
Average Buy Price
₹0
Profit / Loss
₹0
P&L %
0.00%
Invested vs Market Value
How this is calculated
Average Price = Σ(Qty × Price) / ΣQty- 10 purchase entries, 0 total shares
- 2Total invested: ₹0
- 3Average buy price: ₹0
- 4At market price ₹100: value ₹0
- 5P&L: ₹0 (0.00%)
Results are estimates for educational purposes only and are not financial, investment, tax, accounting, or legal advice. Always consult a qualified professional before making financial decisions.
By Vizo ToolLast updated August 20265 min read
Stock Average Calculator — Lower Your Average Buy Price
The Stock Average Calculator finds your average buy price across multiple purchases of the same stock. Add unlimited buy entries with quantity and price, plus the current market price, and instantly see your total quantity, total invested, average price, and an estimated profit or loss.
Perfect for tracking averaging-down strategies or keeping tabs on a position built up over time. Everything runs privately in your browser.
- Unlimited entries
- Average buy price
- P&L estimate
- Total invested
- Free & private
Why Use Stock Average?
True Average Price
Weighted average across all your purchases — not a simple mean.
Unlimited Entries
Add every buy you've made, no matter how many times you've averaged down.
Live P&L Estimate
Enter the current market price to see unrealized profit or loss instantly.
Free & Private
No account, no uploads — your trading math stays on your device.
Features
Dynamic Rows
Add and remove purchase entries freely with quantity and price per row.
Average Buy Price
The weighted average cost of all your shares.
Total Quantity & Invested
Summed across every purchase entry.
Profit / Loss
Estimated P&L in rupees and percentage at the current market price.
Copy & Share
Copy your position summary or share it with one click.
How to Use the Stock Average Calculator
Track any stock position in three steps.
Add your purchases
Enter quantity and price for each buy — add as many entries as you have.
Enter the current price
Set the current market price to see your estimated P&L.
Review your position
Check average buy price, total invested, and profit or loss.
Frequently Asked Questions
Got questions? We've got answers.
How is the average buy price calculated?▼
It's the weighted average: total cost of all shares ÷ total quantity — not the simple average of your entry prices.
What is averaging down?▼
Buying more shares at a lower price to reduce your overall average cost per share — this tool makes the math clear.
How do I calculate my average stock price?▼
Add the total money spent on all buys and divide by total shares. Example: 10 @ ₹100 + 10 @ ₹80 = ₹1,800 ÷ 20 = ₹90 average.
Does it include brokerage and taxes?▼
Enter prices after adding brokerage and taxes for a true average cost per share.
What is the formula for average price?▼
Average = Σ(qty × price) ÷ Σ(qty) across all purchases.
How is profit or loss estimated?▼
P&L = (current price − average price) × total quantity. The percentage is relative to your total invested.
Is the stock average calculator free?▼
Yes, completely free with no sign-ups and no limits.
How many entries can I add?▼
Up to 20 purchase entries — enough for long averaging campaigns.
What is the difference between average price and market price?▼
Average price is what you paid on average; market price is what it's worth now. The gap determines your P&L.
Does it work for SIPs or recurring buys?▼
Yes — every installment can be entered as its own row, and the tool computes the blended average.
Can I copy or share my position?▼
Yes — copy the summary or share it with one click.
Is my data private?▼
Yes — everything runs locally in your browser and nothing is uploaded.
Does it work on mobile?▼
Yes, fully responsive with touch-friendly row inputs.
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