Calculate the weighted average cost across two stock purchases.
SOBANUKIRWA IGISUBIZO
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This calculator applies the displayed investment formula directly to your inputs. It keeps full precision during the calculation and rounds only the displayed result.
Stock Average formulaAverage = price A × (1−weight) + price B × weight
Urugero rufatika
Using the default example values, the calculator substitutes 40 and 55 plus 50 into the formula. Change the values to model your own scenario.
Igisubizo cyabazwe
First purchase price
Second purchase price
Igisubizo cyabazwe
$32.00
$55.00
$43.50
$40.00
$55.00
$47.50
$48.00
$55.00
$51.50
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The values entered for first purchase price and second purchase price are accurate for the scenario.
Rates and recurring amounts remain constant for the period represented by the formula.
Provider fees, taxes and timing differences are excluded unless they are explicit inputs.
Uko wasobanura igisubizo
Treat the main number as a planning estimate, not a quote, approval or guarantee.
Compare at least a baseline, lower and higher assumption before deciding.
Use the result together with the related investment calculators for a broader view.
Amakosa akunze kubaho ugomba kwirinda
Entering a percentage as a decimal when the field expects a whole percent.
Comparing results that use different time periods or omit different fees.
Rounding inputs early or treating an estimated rate as guaranteed.