Scientific Calculator Online

Built for science and math classes

Once you hit chemistry, physics, or trig, a basic calculator stops being enough. You need sines for projectile motion, logs for pH, and exponents for scientific notation. This page keeps all of that on a single screen.

Everything is labeled plainly. sin⁻¹ means inverse sine. xʸ means "x to the power of y." No shift keys, no second functions to memorize — what you see is what you get.

Quick guide to the keys

Trigonometry: sin, cos, tan

Type sin(30) with DEG mode on and you get 0.5. The ⁻¹ versions are the inverse functions — sin⁻¹(0.5) gives you back 30 degrees. Remember to check your DEG/RAD setting first.

Powers and roots

x² squares a number, x³ cubes it, and xʸ raises to any power you type next. √ is square root, ∛ is cube root. For anything else, like the 4th root of 16, use xʸ with a fraction: 16^(1/4).

Logarithms

log is base 10, ln is base e. Chemistry students meet these in pH calculations; algebra students meet them when solving exponential equations. Both take one tap here.

Common mistakes (and how to avoid them)

The classic one is degrees vs. radians — sin(90) is 1 in degrees but about 0.894 in radians. If your trig answer looks wrong, check the DEG/RAD button before anything else.

The other classic is missing parentheses. Type sin(30+60), not sin 30+60. And for negative exponents, wrap them: 2^(-3), not 2^-3. Parentheses are free — use them.

Other calculators you might need

Need graphs too? Try the graphing calculator, or go back to the main TI-84 calculator.

Frequently asked questions

Last updated: September 26, 2026