Octal multiply

Client

Multiply base-8 numbers alongside octal add/subtract.

How to use

Enter two octal numbers.

About Octal multiply

Multiply two octal integers—product in octal and decimal, local only. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

10 × 7 = 0o70 (56 decimal)

Nearby workflows on Toolcore

  • Octal addition — Add two octal integers—shows octal and decimal sum, browser-only. when the payload needs a different encoding or escape format.
  • Octal subtraction — Subtract two octal integers—octal and decimal difference in browser. when the payload needs a different encoding or escape format.
  • Octal ↔ decimal — Convert octal literals to decimal or decimal to octal—radix helper. when the payload needs a different encoding or escape format.
  • Binary multiply — Multiply two binary numbers—decimal and binary product, local only. when the payload needs a different encoding or escape format.

Common use cases

  • Permission bitmask products.
  • Legacy octal arithmetic practice.

Common mistakes to avoid

  • Digits 8-9

    Octal uses digits 0 through 7 only.

FAQ

0o prefix?

Optional leading 0o is stripped.

More tools

Related utilities you can open in another tab—mostly client-side.