Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Return on Investment (ROI) Calculator

Compute the simple or annualized return on investment (ROI) for any business or personal investment, including all upfront and ongoing costs. Use it to rank projects, compare marketing channels, or sanity-check whether a deal beats your hurdle rate.

Initial Investment ($)

Final Value ($)

Investment Period (years)

Additional Costs ($)

ROI Calculation Type

Ecommerce

Profit Margin Calculator

Calculate the gross profit margin — the percentage of every sales dollar that remains after paying for the goods sold. Use it to set product prices, evaluate deals, and benchmark against industry margin targets.

Cost Price ($)

Selling Price ($)

Key differences

	Return on Investment (ROI) Calculator	Profit Margin Calculator
Category	Business	Ecommerce
Inputs required	5	2
Result	Return on Investment (%)	Profit Margin (%)
What it does	Compute the simple or annualized return on investment (ROI) for any business or personal investment, including all upfront and ongoing costs. Use it to rank projects, compare marketing channels, or sanity-check whether a deal beats your hurdle rate.	Calculate the gross profit margin — the percentage of every sales dollar that remains after paying for the goods sold. Use it to set product prices, evaluate deals, and benchmark against industry margin targets.