Omni Calculator - Helping you make rational decisions, one calculation at a time.
Numbr - An elegant calculator for the web
Percentage Calculator - The percentage calculator to make your life easier
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
PercentageCalculator.net - The Percentage Calculator is a free online tool to calculate the percent of numbers like: What Percent, Percent Of, Percent Increase, Percent Decrease, Percent Out Of.
Pry Financials - Finance for Founders