Calculate your true portfolio return by weighting each investment's return by its allocation. See how position sizing determines actual performance with live interactive charts.
Enter each asset return and dollar allocation to compute your true portfolio return.
A weighted return calculates the true overall performance of a portfolio by weighting each asset's return by the dollar amount invested. This reflects how much each position actually contributed to your total gains or losses.
If Asset A returns 50% on $1,000 and Asset B returns -10% on $99,000, the simple average is 20% — but you actually lost $9,400. The weighted return shows -9.4%, the truth.
Type each data point into the 'Value' column. These are the return %s you want to weight.
Enter the allocation $ for each value. The calculator accepts any positive numbers as weights.
The calculator computes your result instantly. See the weighted result, sum of products, sum of weights, and interactive charts update in real time.
The weighted return formula: multiply each value by its weight, sum those products, then divide by the total of all weights.
Enter each value alongside its weight. For example: Stocks 12 (weight 50000), Bonds 5 (weight 30000), REITs 8 (weight 20000).
12 × 50000 = 600000, 5 × 30000 = 150000, 8 × 20000 = 160000.
600000 + 150000 + 160000 = 910000.
50000 + 30000 + 20000 = 100000.
910000 ÷ 100000 = 9.10.
When values have unequal importance, simple averaging misleads. This calculator weights correctly.
Always divide by the sum of weights, not the number of values.
Putting values in the weight column produces wrong results. The labeled columns prevent this.
Multiply each value by its weight. Sum products. Sum weights. Divide. The calculator automates this.
Use the weighted return calculator to compute weighted results. Edit values below.
The weighted result accounts for different weights across categories, giving a more accurate composite than a simple average.
Another real-world example. Edit values to see the result update instantly.
The weighted result reflects the true composite value when different sources have different levels of importance or volume.
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Weights must be positive. The calculator requires positive weights. A weight of zero excludes that value entirely.
Equal weights = simple average. If every value has the same weight, the weighted result equals the simple average.
Result always falls between min and max values. No matter the weight distribution, the result will always be between the smallest and largest values.
Larger weights dominate the result. The larger a weight relative to the total, the more the result is pulled toward that value.
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