Floor Division Calculator

Enter dividend.
Enter divisor.
Math

Floor Division: calculate results from explicit inputs, with a formula and worked example.

Formula

q = floor(a/b); r = a−bq

Example Calculation

Example inputs
  • Dividend: -7
  • Divisor: 3

−7 divided by 3 has floor quotient −3 and remainder 2.

Frequently asked questions

How do I use this calculator?

Enter dividend, divisor. The result updates automatically. Use Reset to restore the example values.

What method does it use?

q = floor(a/b); r = a−bq. Real finite inputs. Numeric results use floating-point arithmetic; this is not a symbolic computer algebra system. Quotient rounds toward negative infinity, not toward zero.

Why might a rounded result differ?

The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.

Are my inputs saved online?

No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.

Check the assumptions and units before using this result. Read about calculation methods.