Scientific Calculator
A proper scientific calculator that runs in your browser. All the functions you'...A proper scientific calculator that runs in your browser. All the functions you'd find on a TI or Casio, trig, logarithms, powers, roots, factorials, ...
Available Functions
Trigonometric
sin- Sinecos- Cosinetan- Tangentasin, acos, atan- Inverse
Logarithmic
log- Base 10ln- Natural logexp- e^x
Powers & Roots
xʸ- Power√- Square root∛- Cube root
Constants
π- Pi (3.14159...)e- Euler's (2.71828...)
What's Included
Why Use Scientific Calculator?
All the Functions You Need
Trig functions (sin, cos, tan and inverses), logarithms (log and ln), powers, roots, factorials, and constants like π and e.
Degrees or Radians
One click to switch between DEG and RAD. The calculator remembers your preference as you work.
Memory That Actually Works
Store numbers with MS, add with M+, subtract with M-, recall with MR. A little M shows when something's stored.
See Your Past Calculations
Every calculation gets saved. Click any previous result to use it again without retyping.
No Shady eval() Stuff
We built a proper math parser. Your expressions get parsed safely, not thrown into JavaScript's eval function.
Nothing Leaves Your Browser
All the math happens right here on your device. We don't see your calculations, store them, or send them anywhere.
Who Uses This
Homework Helper
Physics problems, trig identities, chemistry conversions. Faster than your phone's basic calculator.
Engineering Quick Checks
Verify hand calculations, check unit conversions, compute angles and forces on the fly.
Lab Calculations
Molarity, pH calculations, exponential decay. Scientific notation handled automatically.
Construction Math
Roof angles, stair calculations, material estimates. Degrees mode and trig functions ready to go.
How It Works
Check Your Angle Mode
Look at DEG/RAD at the top. If you're working in degrees (most people are), make sure DEG is highlighted. Radians are for when your math teacher specifically says radians.
Type Your Expression
Enter numbers and operations. For functions like sin or log, type the function first, then the number in parentheses. So sin(30) not 30 sin.
Use Memory for Long Problems
Working on something with multiple steps? Hit MS to save your current result, do your next calculation, then MR to bring it back.
Hit Equals
Press = or hit Enter on your keyboard. The result shows up and gets added to your history automatically.
Tips That Actually Help
DEG vs RAD: When to Use Which
Use DEG for almost everything, angles in triangles, navigation, construction, most physics problems. RAD is mainly for calculus, circular motion in physics, and when your textbook specifically uses radians. When in doubt, DEG is probably right.
The M+ Trick for Running Totals
Need to add up a bunch of calculations? After each result, hit M+ instead of writing it down. When you're done, MR gives you the total. Way faster than copying numbers around. Works great for expense totals or lab data.
Check Your Mode Before Trig
Getting weird trig results? Check DEG/RAD first. sin(45) should be about 0.707 in degrees. If you're getting 0.851, you're in radians. This one mistake causes more confusion than any actual calculator error.
Keyboard Shortcuts Speed Things Up
Once you learn them, keyboard is much faster than clicking. Type numbers directly, use * for multiply, / for divide, Enter to calculate. For repetitive calculations, you'll cut your time in half.