Free TI-34 Calculator Online
This free TI-34 calculator online gives you a scientific calculator modeled on the popular TI-34 MultiView layout, right in your browser. There is nothing to download and no account to create. Type an expression, press ENTER, and see both your entry and the answer on a four-line display, just like a classroom MultiView-style calculator. It works on phones, tablets, Chromebooks and desktop computers.
The calculator handles everything a middle school, high school or early college math class needs: fractions and mixed numbers, exponents and roots, trigonometry in degrees or radians, logarithms, factorials, percentages, memory and a scrollable history of your previous calculations. It is an independent, original design inspired by the TI-34 MultiView and is not made or endorsed by Texas Instruments.
How to Use the TI-34 Calculator Online
Click or tap the keys, or click the calculator once and use your computer keyboard. Your entry appears on the third line of the display and the answer appears on the fourth line, while the line above shows your previous calculation. Press 2nd before a key to use the blue function printed above it.
Basic Arithmetic
- Enter the expression using the number keys and the +, −, × and ÷ keys, for example 12 + 3 × 4.
- Press ENTER. The calculator follows the order of operations, so the answer is 24.
- To keep going from the last answer, press an operator straight away. The calculator inserts Ans for you, so × 2 ENTER gives 48.
- Use (−) for negative numbers and the parentheses keys to group terms. A missing closing parenthesis at the end is added automatically.
Working with Fractions and Mixed Numbers
Fractions are where a MultiView-style calculator shines, and they are the main reason students search for a TI-34.
- To enter a fraction, type the numerator, press n/d, then type the denominator. For example 1 n/d 2 + 1 n/d 3 ENTER shows 5⁄6.
- Answers are always simplified, so 6 n/d 8 ENTER shows 3⁄4.
- To enter a mixed number, type the whole number, press 2nd then n/d (U n/d), then enter the fraction. 2 U 1⁄2 + 1⁄4 gives 2 3⁄4.
- Press F◂▸D after an answer to switch between the fraction and its decimal value. Press it on 3⁄8 to see 0.375, and press it again to go back.
- Press 2nd then F◂▸D (mixed) to switch an answer between an improper fraction like 11⁄4 and a mixed number like 2 3⁄4.
Decimal answers that equal a simple fraction can also be converted. For example, sin(30) in degree mode gives 0.5, and F◂▸D turns it into 1⁄2.
Trigonometry
- Check the display: DEG or RAD shows the current angle mode. Press DRG to switch.
- Press sin, cos or tan, type the angle, close the parenthesis and press ENTER. In degree mode, sin(30) = 0.5 and tan(45) = 1.
- For inverse functions, press 2nd first to get sin⁻¹, cos⁻¹ or tan⁻¹. sin⁻¹(0.5) returns 30 in degree mode.
- In radian mode, use the π key: sin(π⁄2) = 1.
Exponents, Roots and Logarithms
- x² squares the previous number or bracket, and 2nd x² gives the square root √.
- ^ raises to any power, such as 2^10 = 1024. Use (1⁄3) as the power for a cube root: 8^(1⁄3) = 2.
- x⁻¹ gives the reciprocal, so 4 x⁻¹ = 1⁄4.
- log is base-10 and ln is the natural log. Their 2nd functions are 10ˣ and eˣ.
- x! computes factorials such as 5! = 120, and % divides by 100, so 200 × 15% = 30.
Statistics Basics
This version does not have a dedicated data-list statistics mode, but it handles the everyday statistics arithmetic you meet in class. To find a mean, add the values in parentheses and divide by how many there are: (12 + 15 + 18 + 21) ÷ 4 = 16.5. To find a percentage of a total, use the % key. For a squared deviation, use the x² key: (12 − 16.5)² = 20.25. Use STO and RCL to keep a running total while you work through a data set.
Memory, Ans and History
- Ans inserts the last answer into a new calculation.
- STO stores the last answer in memory, and an M appears on the display. RCL inserts the stored value. 2nd STO (M+) adds the last answer to memory, and 2nd RCL (MC) clears it.
- Use ▲ and ▼ to scroll back through previous entries. The selected entry is loaded so you can edit it and press ENTER again.
- DEL removes the last key you entered, and CLEAR clears the current entry. Pressing CLEAR on an empty line clears the history.
Keyboard Shortcuts
Click the calculator first, then use numbers, the decimal point, + − * / ^ ( ) ! and %. Enter or = calculates, Backspace deletes, Esc clears, and the arrow keys scroll history. Letter shortcuts: p for π, s, c and t for sin, cos and tan, l for log, n for ln, r for square root, q for x², the backslash key for a fraction bar, f for F◂▸D, a for Ans and d to switch DEG/RAD.
Key Features
- Four-line display that shows your previous calculation, your current entry and the answer together
- Exact fraction arithmetic with automatic simplification
- Mixed numbers, improper fractions and fraction-to-decimal conversion
- Sine, cosine, tangent and their inverses in degree or radian mode
- Powers, squares, square roots, reciprocals, logarithms, 10ˣ and eˣ
- Factorials, percentages, π and e
- Ans, memory store, recall, M+ and memory clear
- Scrollable history of up to 50 calculations
- Clear error messages such as DIVIDE BY 0, DOMAIN and SYNTAX
- Full keyboard support and a layout that resizes for mobile screens
- Free, with no download, sign-up or plugins required
TI-34 vs TI-30XS vs TI-84
All three are popular Texas Instruments models, but they are built for different levels of math. Here is how the real calculators compare.
| Feature | TI-34 MultiView | TI-30XS MultiView | TI-84 Plus |
|---|---|---|---|
| Type | Scientific | Scientific | Graphing |
| Display | 4 lines | 4 lines | Full graphing screen |
| Fractions and mixed numbers | Yes | Yes | Yes |
| Trigonometry and logs | Yes | Yes | Yes |
| Statistics | One- and two-variable | One- and two-variable, with regressions | Advanced statistics and distributions |
| Graphing | No | No | Yes |
| Best for | Grades 5–12, general math, pre-algebra | Algebra, geometry, statistics, science | Algebra II, precalculus, calculus, AP courses |
If you need to graph a function, use our TI-84 calculator online. For a scientific calculator with more statistics, try the TI-30XS calculator online.
Who Is This Calculator For?
- Middle school students working with fractions, decimals, percentages and order of operations.
- High school students in pre-algebra, algebra, geometry and trigonometry.
- Teachers who want to demonstrate keystrokes on a projector or share a free tool with the class.
- Parents helping with homework without buying a physical calculator.
- Test takers practicing with a scientific calculator layout before an exam.
- Anyone who needs quick, exact fraction answers on the go.
Tips for Accurate Answers
- Always check the angle mode before a trig problem. Most geometry homework uses degrees, while calculus and physics often use radians.
- Use parentheses around a negative number before squaring it. (−3)² is 9, but −3² is −9 because the square is applied first.
- Put fractions in parentheses when you raise them to a power, for example (2⁄3)².
- Keep answers as fractions until the last step, then press F◂▸D. This avoids rounding errors that build up with decimals.
- If you see an error, press DEL or ▲ to fix the entry instead of retyping it. DOMAIN means the input is outside what the function allows, such as the square root or log of a negative number.
- Very large or very small answers are shown in scientific notation, so 1E12 means 1 × 10¹².