Floor Calculator

Use our free floor calculator to round any number down (toward negative infinity) to a specified number of decimal places. Shows the original, the floor value, the difference, and whether the value changed.

Math

Number

Decimal Places

Formula

Round down to the nearest specified decimal place. The floor is the largest number that is less than or equal to the original, at the given precision.

floor(x, n) = largest number ≤ x with n decimal places

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Enter a number.
2Choose decimal places (0 = nearest integer).
3Click Calculate.

Examples

floor(3.14, 0)

1.3.14 → 3 (round down to nearest integer)

Result: 3

floor(3.99, 1)

1.3.99 → 3.9 (round down to 1 decimal)

Result: 3.9

Frequently Asked Questions

The floor of a number is the largest integer (or decimal-place value) that is less than or equal to it.

Floor always rounds down (toward -∞), while standard rounding can go either direction.

For negative numbers, floor moves away from zero: floor(-3.14) = -4.

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CalculateMe Team

Last updated: 2026-07-15

Floor Calculator

Formula

How It Works

Examples

floor(3.14, 0)

floor(3.99, 1)

Frequently Asked Questions

What is the floor function?

How is floor different from rounding?

What about negative numbers?

Related Calculators

Floor Calculator

Formula

How It Works

Examples

floor(3.14, 0)

floor(3.99, 1)

Frequently Asked Questions

What is the floor function?

How is floor different from rounding?

What about negative numbers?

Related Calculators