Hex Calculator

Convert hexadecimal numbers to decimal, binary, and octal, and perform hex arithmetic.

Hex Calculator Results

Decimal
255
Hexadecimal
FF
Binary
11111111
Octal
377

How It Works & Formula

Mathematical Formula

Hex to Decimal: Σ(digit × 16^position) where A=10, B=11, C=12, D=13, E=14, F=15.

Hexadecimal is base-16, widely used in programming, memory addresses, and color codes.

📐 Step-by-Step Calculation Breakdown

Substituted values from your current calculation inputs:

Hexadecimal Value (e.g. FF or 1A2B): FF
Operation: none
Second Hex Value: 0A
Color Interpretation: no

How to Use This Calculator

  1. Enter a hexadecimal value.
  2. Optionally select an arithmetic operation and second value.
  3. Click Calculate.

Example Calculation

Hex FF = Decimal 255 = Binary 11111111. #FF5733 (CSS color) = R:255, G:87, B:51.

Understanding the Results

Hex digits 0-9 represent themselves; A-F represent 10-15.

Hex Calculator — Hexadecimal Arithmetic, Bitwise Logic & Number Conversions

The Hex Calculator performs arithmetic operations (addition, subtraction, multiplication, and division) directly in base-16 (hexadecimal) and converts values instantly between Hexadecimal, Decimal, Binary, and Octal number systems.

Hexadecimal Digits:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A (10), B (11), C (12), D (13), E (14), F (15).

Byte Representation: Each hexadecimal digit represents exactly 4 binary bits (a nibble). Two hex digits represent one 8-bit byte (0x00 to 0xFF, spanning 0 to 255 in decimal).

Hexadecimal notation is used across memory address referencing, assembly programming, network MAC addresses, IPv6 routing, and web CSS colour codes (e.g. #FFFFFF). To perform binary-only logic, switch to our Binary Calculator or general Scientific Calculator.

Frequently Asked Questions

  • Why is hex used in web colors?

    #RRGGBB uses 2 hex digits per color channel. Each channel (0-255) maps to hex 00-FF, making the full 24-bit color space compact and human-readable.

🔢Number Theory, Factors & Binary Systems Cluster

Related Calculators & Recommended Tools

Greatest common factor, least common multiple, prime factoring, number sequences, binary, and hexadecimal conversion. Use these interconnected tools to verify results and explore alternative calculation scenarios:

Chandan Yadav — Software Engineer & Founder, Digitac Solution
Chandan YadavMath Calculators

Software Engineer & Founder, Digitac Solution

Math calculators use standard established formulas. Verify results for critical applications.

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