Number Tools
Number Tools
Convert integers between decimal, binary, hex, and octal; calculate percentages; evaluate math expressions; convert numbers to words; Roman numerals; bitwise operations; matrix operations; IEEE 754 visualizer; descriptive statistics; combinatorics (factorial/permutations/combinations); arbitrary-precision big number calculator.
Custom Output Base
Number Tools
Convert integers between decimal, binary, hex, and octal; calculate percentages; evaluate math expressions; convert numbers to words; Roman numerals; bitwise operations; matrix operations; IEEE 754 visualizer; descriptive statistics; combinatorics (factorial/permutations/combinations); arbitrary-precision big number calculator.
Common uses
- Convert hex color #FF5733 to decimal RGB
- Evaluate 2^10 + 255
- Convert decimal 255 to binary and hex
- Convert "forty-two" to 42
- Calculate mean and standard deviation of test scores
- Calculate 20 choose 5
- Multiply two 50-digit numbers exactly
Frequently asked questions
Can I use Number Tools to convert hex color #FF5733 to decimal RGB?
Yes. Number Tools can convert hex color #FF5733 to decimal RGB, directly in your browser.
Can I use Number Tools to evaluate 2^10 + 255?
Yes. Number Tools can evaluate 2^10 + 255, directly in your browser.
Can I use Number Tools to convert decimal 255 to binary and hex?
Yes. Number Tools can convert decimal 255 to binary and hex, directly in your browser.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.