Calculators

Financial, marketing, and productivity calculators to solve common calculations in seconds, no spreadsheet needed.

Percentage Calculator

Calculate percentages, what percent one value is of another, and percentage changes between two numbers.

Calculate your exact age in years, months, and days from your date of birth.

Calculate the monthly payment, total repayment, and total interest on a loan.

Calculate how your investment grows with compound interest and periodic contributions.

Calculate how many days, months, and years there are between two dates.

Calculate return on investment (ROI), net profit, and annualized ROI.

Calculate profit margin, markup, and gross profit from price and cost.

Calculate CPM (cost per thousand impressions), or the total cost or impressions from the other values.

Calculate CPC (cost per click), total cost or clicks, and CTR for your campaigns.

Calculate ROAS (return on ad spend) and the profit from your ad campaigns.

Calculate the engagement rate of your social media posts.

Add or subtract durations in hours, minutes, and seconds with automatic carrying.