CodeItBro

Hex Calculator

Add, subtract, multiply, divide, and run bitwise operations on hexadecimal numbers. See instant outputs in hex, decimal, and binary.

Handle hex math without pen and paper

Paste your hex values, select an operation, and instantly see the result in every base. Use presets to explore color blending, bitmasking, or large integer math.

Hex inputs

Only 0-9 and A-F are allowed. Leading zeros are fine.

Choose operation

Add

A4F + 1B3

0000 0C02

Hex

Decimal

Binary

Bit insights

  • Bit length: 12
  • Hex grouping: 0000 0C02
  • Binary grouping: 1100 0000 0010

Hex calculator tips

  • Grouping makes long results easier to read; toggle it off for raw output.
  • Use bitwise operations for masks or toggling specific bits when working with registers.
  • Division truncates decimals—capture a remainder for precise results.

Why this tool helps

Perfect for embedded developers, cybersecurity analysts, and anyone testing hexadecimal math by hand. Combine it with the binary calculator for full control over low-level operations.

How It Works

The Hex Calculator runs entirely in your browser using JavaScript. Unlike other tools that send your data to a server, we process everything locally on your device. This guarantees 100% privacy and blazing fast speed.

  • No server interaction – data never leaves your device
  • Instant results since there is no network latency
  • Works offline once the page is loaded
  • Free to use with no usage limits

How to Use

1

Enter hex values

Type or paste your hexadecimal numbers. Inputs support uppercase or lowercase 0-9 A-F.

2

Choose an operation

Select math (+, −, ×, ÷) or bitwise (AND, OR, XOR) operations.

3

Review output

See the result in hex, decimal, and binary with grouping, remainder, and history.

Example Usage

Add two hex numbers and instantly see the result in every base.

Input
A4F + 1B3
Output
Result (hex): C02 Decimal: 3074 Binary: 1100 0000 0010

Frequently Asked Questions

Can I enter lowercase values?
Yes. Inputs are case-insensitive; the tool normalizes output to uppercase for readability.
What happens when dividing?
Division reports the integer quotient in multiple bases and the remainder (if any). Fractional parts are not shown.
How big can the numbers be?
We use BigInt under the hood, so you can process very large hex values without precision loss.

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The Hex Calculator is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.