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Absolute Value Calculator

Choose the absolute value of one number or the distance between two points on a number line. Two-point mode also preserves the signed difference from the first point to the second.

Inputs

Results update as you type.

* Required

Result

Results update as you type.

Absolute value
12

How to use the Absolute Value Calculator

Enter a calculation mode and either one finite real number or two finite real-number points.

Review the numeric sign, decimal entry, finite-value requirement, and the intended real-number domain.

Read the nonnegative absolute value, or the point distance and signed difference.

Formula

|x| = x when x ≥ 0 and −x when x < 0. For points A and B, signed difference = B − A and distance = |B − A|.

Example

For points −3 and 5, the signed difference is 5 − (−3) = 8 and the distance is |8| = 8.

Assumptions and limitations

  • Inputs are evaluated as finite real numbers; symbolic expressions, equations, inequalities, coordinate-plane distance, and complex values are not supported.
  • Absolute Value Calculator treats the entered values as estimates and does not infer missing project, account, or personal details.
  • Calculations retain working precision except where the cited method requires an intermediate rounding step; displayed values are then formatted separately. Source rules and dated rates must be rechecked when they change.

Sources

Related math calculators

Frequently asked questions

How does the Absolute Value Calculator work?

|x| = x when x ≥ 0 and −x when x < 0. For points A and B, signed difference = B − A and distance = |B − A|.

What information should I enter in the Absolute Value Calculator?

Enter a calculation mode and either one finite real number or two finite real-number points, then verify the numeric sign, decimal entry, finite-value requirement, and the intended real-number domain.

What should I verify before using this Absolute Value Calculator result?

Inputs are evaluated as finite real numbers; symbolic expressions, equations, inequalities, coordinate-plane distance, and complex values are not supported.

Reviewed 2026-08-14 · number-or-two-point-distance-v2 · content-2026-08-14 · Trusty Calculator Editorial Team