QuickCalc

Simple. Fast. Free.

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☁ Cloud syncSign in and your history follows you to other devices.
⭐ FavoritesStar calculations you want to keep.
🧮 More toolsBMI, loan, percentage, age and unit conversion.

Free Calculators & Tools

Choose a calculator or search for exactly what you need.

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Percentage

Find X% of Y.
Result: —
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BMI Calculator

Estimate body mass index.
BMI: —
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Loan Payment

Monthly payment estimate.
Monthly: —
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Unit Converter

Convert common length and weight units.
Result: —
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Age Calculator

Calculate age from date of birth.
Age: —
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Scientific Calculator

Square root, powers and common trig functions.
Result: —
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Tip Calculator

Calculate tip and total bill.
Tip: —
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Discount Calculator

Find your savings and final price.
Final price: —
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Compound Interest

Estimate growth of a lump-sum investment.
Future value: —
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Mortgage Calculator

Estimate monthly home-loan payments.
Monthly: —
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Date Difference

Find the number of days between two dates.
Difference: —
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Quick Tip

QuickCalc stays free for normal use. Accounts are optional.
Your account is used to sync history and favorites. We can add paid features later without blocking the basic calculator.

Your QuickCalc Account

You are currently using QuickCalc as a guest.

Free Online Calculator Guides

QuickCalc provides free calculators for everyday math, personal finance, health and date calculations. Choose a tool above, enter your values, and get an instant result.

Percentage Calculator

Find a percentage of a number quickly. Useful for discounts, markups, tips and everyday calculations.

BMI Calculator

Calculate body mass index from height and weight. BMI is a screening measure, not a diagnosis.

Loan Calculator

Estimate a regular payment from loan amount, interest rate and number of payments.

Tip Calculator

Calculate a tip, total bill and per-person share when splitting a restaurant bill.

Discount Calculator

Calculate how much you save and the final price after a percentage discount.

Compound Interest Calculator

Estimate future value when interest is compounded at regular intervals.

Mortgage Calculator

Estimate monthly principal-and-interest payments for a fixed-rate mortgage.

Scientific Calculator

Perform square roots, powers and common trigonometric calculations in degrees.

Age Calculator

Calculate your age in completed years from your date of birth.

Date Difference Calculator

Find the number of calendar days between two dates.

Unit Converter

Convert common length and weight measurements between supported units.

Privacy-friendly history

Use QuickCalc without an account. Sign in only when you want cloud-synced history and favorites.

Frequently Asked Questions

Is QuickCalc free?

Yes. The core calculators are free to use, and an account is optional.

Can I use QuickCalc without signing in?

Yes. Guest calculations can be stored locally on your device. Signing in enables cloud history and favorites.

Can I access my calculation history on another device?

Yes, when you are signed in, your calculation history and favorites are stored with your account and can be loaded on another device.

What calculators are available?

QuickCalc includes a standard calculator, percentage, BMI, loan, unit conversion, age, scientific, tip, discount, compound interest, mortgage and date-difference calculators.

Are financial calculator results financial advice?

No. Finance calculators provide estimates based on the values you enter. Actual rates, fees, taxes and lender terms can change the result.