Oktal
hex math, all bases covered
Type two hex values, pick an operator, get instant results in hex, decimal, octal, and binary. Everything runs in your browser.
Hex arithmetic
Add, subtract, multiply, divide — all in hex with BigInt precision.
Bitwise ops
AND, OR, XOR, NOT, shifts. The operations you actually need.
Four-base output
See results in hex, decimal, octal, and binary simultaneously.
Why Hexadecimal?
Each hex digit maps to exactly four binary bits. That makes hex the most compact human-readable way to work with binary data — memory addresses, register maps, color values, network packets, bitmasks.
Most general-purpose calculators either skip bitwise operations entirely or bury them behind mode switches. Oktal puts them front and center.
Supported Operations
| Type | Operators |
|---|---|
| Arithmetic | + − × ÷ |
| Bitwise | AND · OR · XOR · NOT |
| Shifts | « SHL · » SHR |
Built For
- Embedded engineers — register masks, peripheral addresses, interrupt vectors.
- Systems programmers — memory layouts, page alignment, pointer math.
- CS students — base conversions, bitwise practice, building binary intuition.
Why “Oktal”?
“Oktal” is the German word for “octal” — base-8 numbering. It felt right for a tool that speaks in hex, decimal, octal, and binary all at once.
Your data stays put
No accounts. No server calls. All computation runs client-side via BigInt. See our Privacy Policy for details.
Made by Infinite Orchard. Got a question? Hit the “Contact Us” link below.