Free Hex Calculator Online - TestMu AI (Formerly LambdaTest)

What is a Hex Calculator?

A hex calculator performs math and bitwise operations directly on hexadecimal (base-16) numbers. Hexadecimal uses sixteen symbols, 0-9 and A-F, and is widely used in programming for memory addresses, color codes, byte values, and bitmasks. Instead of converting to decimal by hand, you enter two hex values, pick an operation, and get the result in hex, decimal, and binary at once, with the calculation steps shown. Everything runs in your browser using arbitrary-precision integers, so even very large values are exact.

How to Use the Hex Calculator

• Enter the first hexadecimal number (e.g., FAAA).
• Choose an operation, add, subtract, multiply, divide, modulo, AND, OR, XOR, shift, or NOT.
• Enter the second hexadecimal number (not needed for NOT).
• Click Calculate to see the hex, decimal, and binary results plus the steps.
• Toggle Digit grouping for readability, or copy any result with one click.

Supported Operations

• Arithmetic: add (+), subtract (−), multiply (×), divide (÷), modulo (mod)
• Bitwise: AND, OR, XOR, NOT
• Shifts: left shift and right shift by a hex amount
• Outputs: hexadecimal, decimal, and binary, with optional digit grouping

Hex vs Decimal vs Binary

The same value can be written in three common bases. The calculator shows all three for every result; this table summarizes how they relate.

Use Cases for the Hex Calculator

Hex math shows up across low-level programming and design, and this calculator pairs with the other free base tools from TestMu AI.

• Bitmask work: Combine flags or mask bits, then verify the result with the bitwise calculator.
• Base conversion: Convert single values with the hex to decimal, decimal to hex, and hex to binary tools.
• Binary arithmetic: For base-2 math, switch to the binary calculator.
• Color and addressing: Add or offset hex color codes and memory addresses without manual conversion.

Frequently Asked Questions (FAQs)

What is a hex calculator?

A hex calculator performs arithmetic and bitwise operations on hexadecimal (base-16) numbers and shows the result in hex, decimal, and binary, so you do not have to convert by hand.

Which operations are supported?

Add, subtract, multiply, divide, modulo, bitwise AND, OR, XOR, NOT, and left and right bit shifts on hexadecimal values.

How big can the numbers be?

The calculator uses arbitrary-precision integers, so it handles very large hexadecimal numbers exactly, without rounding or overflow.

Is my data sent to a server?

No. All calculations run entirely in your browser. Nothing you enter is uploaded, stored, or logged.

How do I convert hex to decimal or binary?

Enter the hex value and run any operation; the result panel shows the same number in hexadecimal, decimal, and binary at once. For a single conversion, a dedicated hex to decimal or hex to binary tool is quicker.

What is hexadecimal used for?

Hexadecimal is a compact way to write binary. Programmers use it for memory addresses, color codes such as #FF8800, byte and bitmask values, and hashes, because two hex digits map cleanly to one byte.

Does it support negative results and remainders?

Yes. Subtraction can produce negative values, division shows the integer quotient, and modulo returns the remainder. Bit shifts and bitwise AND, OR, XOR, and NOT are supported too.