Hex Calculator Guide

Master Hexadecimal Arithmetic & Conversions

Hex Addition

Adding hex numbers follows similar rules to decimal, but carries occur at 16 instead of 10:

  0x1A
+ 0x2F
------
  0x49  (Decimal: 26 + 47 = 73)

Hex to Decimal Conversion

Convert hex to decimal by multiplying each digit by 16 raised to its position:

0x2A3 = (2 × 16²) + (10 × 16¹) + (3 × 16⁰)
      = 512 + 160 + 3
      = 675 decimal

Decimal to Hex Conversion

Divide repeatedly by 16 and track remainders:

255 ÷ 16 = 15 remainder 15 (F)
 15 ÷ 16 =  0 remainder 15 (F)
Result: 0xFF

Practical Calculator Usage

  • Memory Addressing: Calculate offsets in hex (0x1000 + 0x0FF = 0x10FF)
  • Color Mixing: Add RGB values (#FF0000 + #00FF00 = #FFFF00)
  • Bit Manipulation: AND, OR, XOR operations in hex
  • Data Analysis: Calculate file sizes and offsets

💡 Pro Tip

Use our hex decoder tool for quick conversions, then apply calculations manually. Most programming languages support hex literals (0x prefix).

Online Hex Calculator Tools

While our hex decoder handles encoding/decoding, these complementary tools help with calculations:

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