Percentage calculator
Percentage calculator lets you calculate percentages, change rates, and original values with zero checks in your browser.
Decimal calculator
Decimal calculator lets you evaluate decimal arithmetic and parentheses precisely without eval in your browser.
Decimal calculator
⌂ Inputs and results stay in this browser and are not automatically stored or sent.
Waiting for input
Input
Output
Waiting for input
Complete text result
How to use
Enter decimal numbers with arithmetic operators and parentheses, then select output precision and rounding.
Rounding only the final result can differ from rounding intermediate steps. Resolve division by zero or unsupported functions and compare outputs under the rounding rule your task requires.
Examples
0.1 + 0.2 * (3 - 1)Principles and limits
Each input is limited to 1,048,576 bytes, output to 33,554,432 bytes, and processing to 5,000 ms. Input is never silently truncated.
Guides
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