Weighted Average Cost Calculator (Stock/Crypto)
Calculate the weighted average purchase price across two buy lots.
Formula and method
This calculator computes Average cost per unit, Total invested directly in your browser without sending data to an external server.
Mathematical formula
- Average cost per unit:
(qty1 × price1+qty2 × price2) ÷ (qty1+qty2) - Total invested:
qty1 × price1+qty2 × price2
Variables and parameters
- Lot 1 quantity (qty1): default value 10.
- Lot 1 price (price1): default value 100.
- Lot 2 quantity (qty2): default value 5.
- Lot 2 price (price2): default value 120.
Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.
Embed this tool
Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.
Frequently asked questions
What equation and variables does Weighted Average Cost Calculator (Stock/Crypto) use?
Weighted Average Cost Calculator (Stock/Crypto) evaluates outputs such as <strong>Average cost per unit, Total invested</strong> based on inputs including Lot 1 quantity, Lot 1 price, Lot 2 quantity, Lot 2 price. Check the Mathematical Method section for the explicit formula.
How can I compare different financial scenarios using Weighted Average Cost Calculator (Stock/Crypto)?
You can click the "Add to Compare" button after computing your scenario to pin it to your temporary side-by-side Compare Workbench, allowing you to evaluate loan, rate, or interest differences.
What happens if I enter invalid or zero values into Weighted Average Cost Calculator (Stock/Crypto)?
If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.
Are my calculations in Weighted Average Cost Calculator (Stock/Crypto) saved or private?
All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.
Is Weighted Average Cost Calculator (Stock/Crypto) free to use?
Yes. Weighted Average Cost Calculator (Stock/Crypto) is completely free, has no usage limit, and does not require an account, email, or API key.
Does Weighted Average Cost Calculator (Stock/Crypto) store or upload my data?
No. Weighted Average Cost Calculator (Stock/Crypto) calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is Weighted Average Cost Calculator (Stock/Crypto)?
Weighted Average Cost Calculator (Stock/Crypto) uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.
Can I embed Weighted Average Cost Calculator (Stock/Crypto) on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Weighted Average Cost Calculator (Stock/Crypto) to your own blog post or page.