All calculators

Compare your current mortgage with refinancing options to save money.

Compare total cost of renting versus buying a home over time.

Calculate gross and net rental yield on your investment property.

Calculate power dissipation in resistors using voltage, current, or resistance.

Calculate retirement savings needed and project long-term growth

Compare retirement outcomes for early, normal, and late retirement ages.

Calculate return on investment for any expense or asset quickly.

Calculate your running pace, time, or distance with precision.

Convert your salary between hourly, weekly, monthly, and annual rates instantly.

Calculate sales tax and total purchase price instantly.

Calculate monthly savings needed to reach your financial goal by a target date.

Convert numbers to and from scientific notation instantly.

Find the optimal route between multiple points instantly.

Calculate interest earned on a principal amount without compounding over time

Calculate your annual electricity savings from solar panel installation.

Find the square root of any positive number instantly

Calculate sample or population standard deviation from your dataset

Calculate your student loan payments and payoff timeline instantly.

Calculate total study hours needed to prepare for your exam

Calculate IPv4 subnet ranges, broadcast addresses, and host counts instantly.

Calculate your total daily energy expenditure and caloric needs instantly.

Calculate the exact duration between two times in hours and minutes.

Calculate tip amounts and split bills fairly among dining companions instantly.

Calculate your total trip cost with flights, accommodation, meals, and activities.