Math Tools - Toolzana

Math Tools on ToolZana give you simple, free ways to solve everyday maths problems: ratios and proportions, volumes, averages, grades and number checks. Every tool opens in your browser, works on desktop and mobile, and gives an answer instantly.

What Math Tools Do

Math Tools take the manual work out of the calculations you meet at school, at work and around the home. Instead of working through a formula by hand, you enter your numbers and get a clear result straight away.

Use them to simplify a ratio for a recipe or a scale drawing, solve a proportion, work out how much gravel a project needs, check whether a number is prime, or find the average of a set of scores. The tools are free, do not need an account, and do not store the numbers you enter.

All Math Tools

✦MATH TOOLSRatio CalculatorSimplify ratios, find a missing value and compare two quantities in seconds — free, no sign-in.Open tool ↗✦MATH TOOLSProportion CalculatorSolve proportions and find the missing value when two ratios are equal — free, no sign-in.Open tool ↗✦MATH TOOLSVolume CalculatorWork out the volume of common shapes and containers from a few measurements — free, no sign-in.Open tool ↗✦MATH TOOLSLCM and GCF CalculatorFind the least common multiple and greatest common factor of two or more numbers — free, no sign-in.Open tool ↗✦MATH TOOLSGravel CalculatorEstimate how much gravel you need for a driveway, path or garden bed — free, no sign-in.Open tool ↗✦MATH TOOLSPrime Number CheckerCheck whether any number is prime, and see why, in seconds — free, no sign-in.Open tool ↗✦MATH TOOLSGrade CalculatorCalculate grades and averages from your scores and weights — free, no sign-in.Open tool ↗✦MATH TOOLSAverage CalculatorFind the average of any list of numbers in seconds — free, no sign-in.Open tool ↗

How to Use Math Tools

Every Math Tool works the same way: open the tool below and follow these steps to get an answer in seconds.

Open the tool you need from the list above, or bookmark its page for next time.
Enter your numbers in the tool’s fields — for example, the two sides of a ratio or a list of scores.
Read the result: the tool shows the answer as soon as your numbers are in, with its working where it helps.
Try different values to compare results, for example to find the grade you need on your next test or the amount of gravel for a project.

Math Tools and Privacy

Math Tools are built for quick, private calculations. Your numbers are used only to show the result on your device and are not saved, shared or sent to a server. You may use every tool without creating an account or signing in, so your homework, grades and project measurements stay with you.

Frequently Asked Questions

Are Math Tools free to use?

Yes. Every Math Tool on ToolZana is free. You can open any of the calculators above and use them as often as you like, with no payment and no account.

Do Math Tools require an account?

No. You can use every Math Tool without signing in or creating an account.

Do the tools save my numbers?

No. Your numbers are used only to show the result in your browser and are not saved, shared or stored.

Can I use the tools on my phone?

Yes. Math Tools work on phones, tablets and desktop computers. Open the tool, enter your numbers and read the result.

Do Math Tools work offline?

You need an internet connection to open a tool page. After the page has loaded, you can use the tool with the numbers you enter.

Which Math Tool should I use first?

Start with the calculator that matches your problem: Ratio Calculator for ratios, Proportion Calculator for proportions, Volume Calculator for volumes, Gravel Calculator for garden and driveway projects, or Average Calculator for a set of numbers.

Can I bookmark a specific tool?

Yes. Every tool has its own page, so you can bookmark it and come back to it whenever you need it.

Are Math Tools safe for private information?

Yes. The tools do not save the numbers you enter. As with any online tool, do not enter sensitive personal information.