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About us

In a surprisingly large part, our reality consists of calculable problems. Should I buy or rent? What's my ideal calorie intake? Can I afford to take this loan? How many lemonades do I need to sell to break even? Often, we don't solve these problems because we lack knowledge, skills, time, or willingness to calculate. And then we make bad, uninformed decisions. Omni Calculator is here to change all that:

We are working on technology that will make every* calculation-based problem trivial for anyone to solve.

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Most popular calculators

p-value

The p-value calculator can help you find the p-value and evaluate how compatible your data is with the null hypothesis.

p-value Calculator

Confidence interval

The confidence interval calculator finds the confidence level for your data sample.

Confidence Interval Calculator

Test grade

With this test grade calculator, you'll quickly determine the test percentage score and grade.

Test Grade Calculator

Log

The log calculator (logarithm) calculates the value of a logarithm with an arbitrary base.

Log Calculator (Logarithm)

Sales tax

Sales tax calculator works out the tax imposed on the sale of goods and services.

Sales Tax Calculator

Significant figures

Perform mathematical operations on significant figures with our calculator. Get step-by-step solutions or use the built-in sig fig counter!

Significant Figures Calculator – Sig Fig

Scientific notation

The scientific notation calculator converts decimals into scientific notation. Explore the rules of scientific notation for a thorough understanding.

Scientific Notation Calculator

Square footage

Utilize our free square footage calculator to determine the area of diverse property shapes in square feet (sq ft) accurately and effortlessly.

Square Footage Calculator

Percentage increase

Percentage increase calculator calculates the increase of one value to the next in terms of percent.

Percentage Increase Calculator

Exponent

Exponent calculator helps you find the result of any base raised to a positive or negative exponent.

Exponent Calculator

Percentage

Use our free online percentage calculator for precise results. Learn how to calculate percentages or get quick answers with us.

Percentage Calculator

Square root

Square root calculator helps you find the square root of any positive number.

Square Root Calculator

Circumference

Use this free circumference calculator to find the area, circumference and diameter of a circle.

Circumference Calculator

Slope

Calculate the slope of a line through two given points using the slope calculator. Discover the slope formula and learn how to find slope with two points.

Slope Calculator

Salary to hourly

Find your hourly wage instantly with our Salary to Hourly Calculator. Ideal for job seekers and employees to convert annual, monthly, or weekly salaries.

Salary to Hourly Calculator

Pythagorean theorem

Pythagorean theorem calculator helps you find out the length of a missing leg or hypotenuse of a right triangle.

Pythagorean Theorem Calculator