Hex to Decimal Converter | Convert Hexadecimal to Decimal Numbers

Free online hexadecimal to decimal converter. Convert hex numbers to decimal with instant results. Includes conversion tables and comprehensive examples.

Hexadecimal to Decimal Converter

Input

FromTextBinaryHexadecimalDecimalOctal

ToTextBinaryHexadecimalDecimalOctal

Character EncodingUTF-8ASCIIUTF-16

Convert

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Hex Digit Values

Hex: A

Decimal: 10

Hex: B

Decimal: 11

Hex: C

Decimal: 12

Hex: D

Decimal: 13

Hex: E

Decimal: 14

Hex: F

Decimal: 15

Common Examples

Hex: FF

Decimal: 255

(15 × 16¹) + (15 × 16⁰) = 240 + 15 = 255

Hex: A5

Decimal: 165

(10 × 16¹) + (5 × 16⁰) = 160 + 5 = 165

Hex: 100

Decimal: 256

(1 × 16²) + (0 × 16¹) + (0 × 16⁰) = 256

Hex: FFFF

Decimal: 65535

Maximum 16-bit value

Understanding Place Values

16³	16²	16¹	16⁰
4096	256	16	1

Example: 1A5₁₆

1 × 16² = 1 × 256 = 256

A × 16¹ = 10 × 16 = 160

5 × 16⁰ = 5 × 1 = 5

Sum: 256 + 160 + 5 = 421₁₀

How Hex to Decimal Conversion Works

Step-by-Step Process

1. Convert each hex digit to its decimal value (A=10, B=11, etc.)
2. Multiply each value by its place value (powers of 16)
3. Sum all the results to get the final decimal number

Tips for Quick Conversion

• Learn hex digit values (A-F)
• Practice with powers of 16
• Break down larger numbers

Common Values

FF = 255 (max byte)

100 = 256 (16²)

10 = 16 (16¹)

1000 = 4096 (16³)

Practice Problems

Convert: 2A₁₆

Answer: 42₁₀

Convert: FF₁₆

Answer: 255₁₀

Convert: 100₁₆

Answer: 256₁₀

Related Conversions

Hex to Binary

Hex to Octal

Decimal to Hex

Binary to Hex