Taschenrechner
The German online calculator built for real expressions — type a full formula with parentheses, trig functions and powers, watch the live preview, then press equals.
What this calculator handles
The keypad accepts complete expressions, not just number operator number. Nest parentheses, mix trig functions with powers and chain logarithms — sin(30)+log(100)^2 evaluates as one expression.
Precedence follows the standard convention: functions first, then powers, then multiplication and division. Exponentiation is right-associative, so 2^3^2 is 2⁹ = 512, not 64.
Degrees or radians
The DEG / RAD switch changes how sin, cos and tan read their argument. In DEG mode sin(30) is 0.5. If a result looks wrong by a factor of about 57, the mode is the usual culprit.
Frequently asked questions
Does it follow order of operations?
Yes. Functions bind tightest, then exponents, then multiplication and division, then addition and subtraction. Parentheses override the order.
How do I enter a negative number?
Type the minus sign before the number. A leading minus is read as negation, so −5² is −(5²) = −25.
Why does sin(30) differ between DEG and RAD?
The mode changes the unit, not the number: 30 radians is about 1,719 degrees.
Is the history saved after I close the page?
No — it lives in memory for the current session only, so the tool stays cookie-free.