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Most used calculators

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Mortgage Calculator

Estimate monthly mortgage payments using home price, down payment, rate, term, taxes and insurance.

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Loan Payment Calculator

Estimate a fixed-rate loan payment and total interest.

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Auto Loan Calculator

Estimate monthly vehicle payments and total interest.

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Compound Interest Calculator

Estimate future value with monthly contributions and compounding.

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Simple Interest Calculator

Calculate simple interest and total amount.

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Savings Calculator

Estimate savings growth from an initial balance and regular deposits.

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Salary Calculator

Convert hourly pay into weekly, monthly and annual gross income.

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Hourly to Salary Calculator

Convert an annual salary into an equivalent hourly rate.

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BMI Calculator

Calculate BMI using U.S. feet, inches and pounds.

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BMR Calculator

Estimate basal metabolic rate using the Mifflin-St Jeor equation.

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Age Calculator

Calculate age in years, months and days from a birth date.

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Percentage Calculator

Find percentages, percentage change and common percentage answers.

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Discount Calculator

Calculate sale price and savings from a discount percentage.

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Tip Calculator

Calculate a restaurant tip and split the bill between people.

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Concrete Calculator

Estimate concrete volume in cubic feet and cubic yards.

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Sales Tax Calculator

Calculate sales tax and final purchase price.

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Investment Calculator

Estimate future value with contributions and return.

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Debt Payoff Calculator

Estimate payoff time and interest.

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Fuel Cost Calculator

Estimate fuel needed and trip cost.

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Time Duration Calculator

Calculate the duration between two times.

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Date Difference Calculator

Find days, weeks and months between dates.

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Fraction Calculator

Add, subtract, multiply and divide fractions.

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Ratio Calculator

Simplify ratios and calculate shares.

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Electricity Cost Calculator

Estimate electricity use and cost.

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Pace Calculator

Calculate running or walking pace.

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AdSense Revenue Calculator

Estimate AdSense revenue from pageviews, click-through rate and cost per click.

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AdSense RPM Calculator

Calculate revenue per 1,000 pageviews from earnings and pageviews.

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AdSense CPC Calculator

Calculate average cost per click from total ad earnings and clicks.

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AdSense CTR Calculator

Calculate click-through rate from ad clicks and ad impressions.

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AdSense CPM Calculator

Calculate estimated cost/revenue per 1,000 ad impressions.

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Ad RPM Calculator

Calculate ad revenue per 1,000 ad impressions.

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Page RPM Calculator

Calculate page revenue per 1,000 pageviews.

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Ad Impression Calculator

Estimate filled ad impressions from pageviews, ads per page and fill rate.

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Ad Click Calculator

Estimate ad clicks from ad impressions and click-through rate.

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Ad Request RPM Calculator

Calculate revenue per 1,000 ad requests.

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Revenue per 1,000 Views Calculator

Calculate how much revenue is earned per 1,000 views.

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๐Ÿ“บ

YouTube Revenue Calculator

Estimate creator revenue from video views and creator RPM.

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YouTube RPM Calculator

Calculate creator revenue per 1,000 views.

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YouTube CPM Calculator

Calculate advertiser CPM from ad spend and monetized playbacks/impressions.

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YouTube Earnings Calculator

Estimate video earnings from views and creator RPM.

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๐ŸŽฌ

YouTube Views to Money Calculator

Convert a number of video views into estimated creator revenue.

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๐Ÿ‘ฅ

YouTube Subscribers Growth Calculator

Project subscriber count using a monthly growth rate over time.

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YouTube Watch Time Calculator

Estimate total watch time from video views and average view duration.

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YouTube Monetization Calculator

Track progress toward your own subscriber and watch-hour goals.

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Simple tools, transparent estimates

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.

Frequently Asked Questions

Are SmallCalculator calculators free?

Yes. The calculators are designed to be free to use without creating an account.

Do calculators provide exact financial or health advice?

No. They provide estimates based on the values and assumptions entered. Confirm important decisions with a qualified professional or the relevant provider.

Do you store calculator inputs?

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.

Can I use these results for a lender or tax filing?

Use them as planning estimates only. Official lender, employer, government or professional calculations may use additional inputs and rules.