SmallCalculator offers simple, fast calculators for finance, home, work, health and everyday math — designed for people in the United States.
Start with a tool and enter your own numbers.
Estimate monthly mortgage payments using home price, down payment, rate, term, taxes and insurance.
Calculate →Estimate a fixed-rate loan payment and total interest.
Calculate →Estimate monthly vehicle payments and total interest.
Calculate →Estimate future value with monthly contributions and compounding.
Calculate →Calculate simple interest and total amount.
Calculate →Estimate savings growth from an initial balance and regular deposits.
Calculate →Convert hourly pay into weekly, monthly and annual gross income.
Calculate →Convert an annual salary into an equivalent hourly rate.
Calculate →Calculate BMI using U.S. feet, inches and pounds.
Calculate →Estimate basal metabolic rate using the Mifflin-St Jeor equation.
Calculate →Calculate age in years, months and days from a birth date.
Calculate →Find percentages, percentage change and common percentage answers.
Calculate →Calculate sale price and savings from a discount percentage.
Calculate →Calculate a restaurant tip and split the bill between people.
Calculate →Estimate concrete volume in cubic feet and cubic yards.
Calculate →Calculate sales tax and final purchase price.
Calculate →Estimate future value with contributions and return.
Calculate →Estimate payoff time and interest.
Calculate →Estimate fuel needed and trip cost.
Calculate →Calculate the duration between two times.
Calculate →Find days, weeks and months between dates.
Calculate →Add, subtract, multiply and divide fractions.
Calculate →Simplify ratios and calculate shares.
Calculate →Estimate electricity use and cost.
Calculate →Calculate running or walking pace.
Calculate →Browse tools by what you need to calculate.
SmallCalculator is an independent calculator website focused on practical tools. We explain what each calculator does, keep inputs straightforward, and show useful result breakdowns wherever possible.
Our calculators are intended for education and planning. Financial, tax, employment, health, construction and other real-world results can depend on circumstances that a calculator cannot fully model.
Yes. The calculators are designed to be free to use without creating an account.
No. They provide estimates based on the values and assumptions entered. Confirm important decisions with a qualified professional or the relevant provider.
The calculator pages perform calculations in the browser. If analytics or advertising technologies are added later, the site's privacy policy should describe those technologies and their data practices.
Use them as planning estimates only. Official lender, employer, government or professional calculations may use additional inputs and rules.
