Got some tough math homework? Need to solve engineering problems or just work through some tricky calculations? Our free scientific calculator has all the functions you need, and you do not even have to download anything. Just start calculating!
This calculator has everything you'd find on those expensive scientific calculators - but it's completely free
Working with angles? We've got you covered. Whether you're doing geometry homework or engineering calculations:
Dealing with growth, decay, or just really big numbers? These functions have your back:
From simple squares to complex powers, we handle all your algebra needs:
Working through a multi-step problem? Store numbers as you go:
Seriously, it's like having a $100 calculator right in your browser
If you're in high school or college taking math, physics, engineering, or any science class, this calculator does everything you need. It's like having your textbook's answer key, but for showing your work too.
Need precise calculations for your projects? This calculator gives you accurate results down to the decimal. No more wondering if you got the math right - focus on the important stuff.
How many times have you done a calculation and then forgot the answer? With our history feature, you can scroll back through everything you've done. It's like having a math notebook that does the work for you.
On your phone during your commute? On a tablet in class? On your laptop at home? This calculator works perfectly on any device. No app to download, no updates to install - just open and go.
We've got more tools to help with all kinds of calculations
Just need to do some quick adding, subtracting, or multiplying? This simple calculator is perfect for everyday stuff like balancing your checkbook or figuring out tips.
See your math problems come to life! Plot graphs and visualize functions. Super helpful if you're taking algebra, calculus, or trigonometry.
Planning your finances? Calculate loans, investments, and savings. Figure out mortgage payments, car loans, or how much you need to save for retirement.
Percentages can be tricky. This tool makes it easy to figure out discounts, tips, markups, or any percentage problem you come across.
Curious about your health? Calculate your Body Mass Index quickly and easily. Just enter your height and weight to get started.
Need to know how many days until your vacation? Or how long between two dates? This tool makes date calculations super simple.
Here are answers to some common questions about our calculator
Pretty much everything you'd expect from a scientific calculator. It does all the basic math (adding, subtracting, etc.), plus trigonometry (sin, cos, tan), logarithms, exponents, powers, roots, factorials, percentages, and more. It even has memory functions to store numbers while you're working through problems.
It has all the same functions as most scientific calculators allowed on tests, but you should always check with your teacher or the test rules first. Some exams might want you to use a specific type of calculator or not allow internet-connected devices.
Very accurate. We use the same math libraries that professional software uses. For most school and work problems, you're getting answers that are correct to about 15 decimal places - way more precise than you'll probably ever need.
Yes! Just click the "Save History" button and it'll download all your calculations as a text file. Your calculations stay on the page while you're using it, but if you close the tab, they're gone unless you save them first.
Yep, 100% free. No hidden fees, no sign-ups, no "premium version" you have to pay for later. We just wanted to make a good calculator that anyone can use whenever they need it.