Hex to Decimal Calculator

Use our free hex to decimal converter to instantly convert any hexadecimal number to decimal with full place-value expansion, binary and octal equivalents, and digit count.

Math

Hex Number

Formula

Convert hex to decimal. See each hex digit multiplied by its place value (16ⁱ), the running sum, binary, octal, and digit count.

d = Σ hᵢ × 16ⁱ

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Enter a hexadecimal number (0-9, A-F).
2Click Calculate.

Examples

A₁₆ to decimal

1.A = 10 → 10×16⁰ = 10

Result: 10

FF₁₆ to decimal

1.F×16¹ + F×16⁰ = 240 + 15 = 255

Result: 255

Frequently Asked Questions

Multiply each hex digit by 16 raised to its position (from right, starting at 0), then sum. Digits A-F represent 10-15.

Hex is commonly used in computing as a human-friendly representation of binary-coded values.

Yes — both uppercase and lowercase work.

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CalculateMe Team

Last updated: 2026-07-15

Hex to Decimal Calculator

Formula

How It Works

Examples

A₁₆ to decimal

FF₁₆ to decimal

Frequently Asked Questions

How do you convert hex to decimal?

What is hex used for?

Can I enter lowercase?

Related Calculators

Hex to Decimal Calculator

Formula

How It Works

Examples

A₁₆ to decimal

FF₁₆ to decimal

Frequently Asked Questions

How do you convert hex to decimal?

What is hex used for?

Can I enter lowercase?

Related Calculators