Return on Portfolio Calculator is an online personal finance assessment tool in the investment category to calculate the return on portfolio by choosing the proportion of various assets. This is also called as return on weighted combination of assets. R1, R2 and R3 are the return on respective assets and W1, W2 and W3 are the Weighting factors of the assets. When it comes to online calculation, this Return on Portfolio Calculator can assist you to estimate the return on weighted combination of assets.