Average share price
Combine two purchase lots including their buying costs.
Report a problem with this tool
Understanding your calculation
Weighted average cost is total purchase value plus buying fees, divided by total shares. This is a two-lot cost estimate, not a tax cost-basis election; it ignores sales, splits and currency conversion.
- Enter your own values and choose the applicable calculation options.
- Review the breakdown and assumptions; change one input to compare a scenario.
- Download the calculation CSV to retain your inputs and result for independent checking.
Limits and checks
Inputs are validated locally. Results are estimates using the stated model, without live market data, automatic tax classification or personalized financial advice.
Frequently asked questions
What assumptions does the average share price use?
Weighted average cost is total purchase value plus buying fees, divided by total shares. This is a two-lot cost estimate, not a tax cost-basis election; it ignores sales, splits and currency conversion.
Is my content sent to a server?
No. Processing runs inside your browser. Optional editor recovery saves a draft on this device only. Read the privacy policy.
Can I rely on this as a financial decision?
No. Check the model, inputs and assumptions independently. Real borrowing costs, returns, fees and trading losses can differ. Consult a qualified professional when appropriate.