0bOctal to Decimal
Convert octal numbers to decimal instantly — e.g. 17 base 8 = 15 base 10. Exact BigInt math for any magnitude.
Octal to Decimal conversion table
| Octal | Decimal |
|---|---|
| 1 | — |
| 2 | — |
| 5 | — |
| 10 | — |
| 20 | — |
| 50 | — |
| 100 | — |
| 250 | — |
| 500 | — |
| 1000 | — |
Machine API (x402)
$0.001 / callThe same query is available to AI agents as a paid JSON endpoint — pre-configured for this pair:
GET /api/v1/dev/number-base-converter?value=17&from=8&to=10 HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "dev/number-base-converter", "result": { "value": null, "answer": "15" }}Frequently asked questions
What is 1 Octal equal to?
1 Octal equals the conversion factor shown above — see the conversion table below for more magnitudes.
What is the formula for octal to decimal?
Use the tool's Octal → Decimal factor shown in the result details. The conversion is a fixed multiplication, so it is exact within the displayed precision.
Which digits are valid in base 36?
0–9 then a–z, giving 36 digits total. Case is accepted and normalized to lowercase in output.
Are there precision limits?
No. Conversion uses BigInt, so values far beyond Number.MAX_SAFE_INTEGER — like Ethereum private keys or SHA-256 hashes — convert exactly.