Welcome to the Easy Converters Hex to Decimal Converter – your go-to tool for quickly converting hexadecimal (base-16) numbers into decimal (base-10) values. Whether you're working with computer memory addresses, color codes, or programming variables, this converter helps you understand and decode hexadecimal representations into standard numerical values.
Hexadecimal is a base-16 number system that uses digits 0–9 and letters A–F to represent values 0 through 15. It is widely used in computing because it’s more compact than binary and aligns neatly with 4-bit binary segments. For example, 1A3 in hex represents the decimal value 419.
#FF5733) can be better understood when converted to decimal.Each digit in a hexadecimal number represents a power of 16. To convert to decimal:
Formula: Decimal = (Digitₙ × 16ⁿ) + (Digitₙ₋₁ × 16ⁿ⁻¹) + ... + (Digit₀ × 16⁰)
Example:
Hex: 1A3 = (1 × 16²) + (10 × 16¹) + (3 × 16⁰) = (1 × 256) + (10 × 16) + (3 × 1) = 256 + 160 + 3 = 419
| Hex | Decimal |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| A | 10 |
| B | 11 |
| C | 12 |
| D | 13 |
| E | 14 |
| F | 15 |
#FF0000 → 255, 0, 0 in decimal (RGB)0x7FFF → Decimal 32767Here’s how to convert hex to decimal in different programming languages:
int("1A3", 16) → Output: 419parseInt("1A3", 16)Integer.parseInt("1A3", 16)echo $((0x1A3))This tool also supports conversion of very large hexadecimal numbers. For example:
7FFFFFFF → 2147483647 (maximum 32-bit signed integer)FFFFFFFF → 4294967295 (maximum 32-bit unsigned integer)0x or # prefixesEach hex digit can represent a maximum value of 15 (decimal), which is F in hexadecimal.
Yes! You can also use our Decimal to Hex converter to reverse the conversion.
Yes, if the hex represents signed data using two’s complement notation. However, most hex values are treated as unsigned by default.
Hexadecimal uses 16 digits. Since decimal only goes up to 9, the values 10 through 15 are represented by letters A through F.
No. 1a3 and 1A3 are treated the same in conversion.
Hexadecimal notation is central to how operating systems represent memory addresses, file headers, and stack traces. When analyzing crash reports or core dumps, developers often inspect hex values to trace back to specific instruction points. Converting these values to decimal helps in understanding the magnitude of memory usage or addressing specific byte offsets in files.
Example: A memory pointer 0xBADC0DE converts to 195936478 in decimal, which can represent a specific instruction address.
One of the reasons hexadecimal is favored over binary in digital systems is its compactness. A single hex digit represents exactly four binary digits (bits), and two hex digits make up one byte (8 bits). When dealing with storage, network packets, or byte streams, converting hex to decimal provides insights into the exact size or value being handled.
FF → 255 decimalFFFF → 65535FFFFFFFF → 4294967295Cybersecurity analysts use hexadecimal and decimal conversions to decode malware payloads, encryption keys, and file signatures. Hex values found in logs, registry entries, or encoded URLs can be translated into decimal for further classification or to identify malicious behavior patterns.
Example: Hex value in a registry: 0x12C → 300 decimal → suspicious timeout value or key lifespan.
Most file formats begin with a hex “magic number” that helps systems recognize their type. Converting these header hex values to decimal can help identify file type or validate file integrity.
FFD8 → Decimal: 6549625504446 → Decimal: 627109070504B0304 → Decimal: 1347093252Hexadecimal is often used in serial communication and protocol design due to its close relationship with binary. When troubleshooting communication protocols like UART, SPI, or I2C, engineers convert hex payloads into decimal to determine if correct control flags or values were transmitted.
Example: Checksum 0x1F → Decimal: 31 → used to validate integrity.
Network engineers and penetration testers may convert hexadecimal values to decimal when analyzing IP packets, MAC addresses, or TCP flags. Decimal forms are easier to interpret when dealing with TTLs, port numbers, or flags.
0x0050 → Decimal 80 → HTTP port0x40 → Decimal 64To reinforce your understanding of hex to decimal conversion, try these interactive exercises:
1C, 3F, and 7B to decimalThis tool is also ideal for students learning about:
To make your converter even more powerful, consider adding:
The decimal system is base-10 and is familiar in everyday life, using digits 0 through 9. Hexadecimal, on the other hand, is a base-16 system that includes additional symbols A (10) through F (15). The two systems are related through powers of 16 and can be seamlessly converted using positional arithmetic:
A = Decimal 10, F = 152F = (2 × 16) + (15 × 1) = 32 + 15 = 47In embedded systems programming (e.g., Arduino, PIC, ARM Cortex), hardware registers and sensor values are often stored in hex. Engineers convert these to decimal for calibration, computation, and user interface display. For example, a temperature sensor might return 0x1E, which equals 30°C in decimal.
To enhance workflow efficiency, the hex to decimal converter can be integrated into:
Software reverse engineers commonly analyze machine code in hexadecimal format. By converting hex into decimal, they better understand system calls, function references, jump offsets, and instruction pointer behavior in debuggers like OllyDbg or IDA Pro.
Example:
0x90 = 144 → often a NOP (No Operation) in x86 assembly0xC3 = 195 → corresponds to RET (Return) instructionNeed to convert multiple hex numbers at once? Advanced versions of this converter can allow:
1A, FF, C0DE)Hexadecimal is widely used in blockchain platforms such as Ethereum, where wallet addresses, smart contract identifiers, and hash outputs are shown in hex. Converting them to decimal allows for easier comparison, indexing, or storage in relational databases.
Example:
0xa3f...f12 → Decimal: Big integer representation0x10 → Decimal: 16 → used in mining difficulty calculationTeachers and instructors can use the converter to demonstrate numeral system theory in computer science courses. Suggested classroom integrations:
When designing or using a Hex to Decimal Converter, follow these UX and validation guidelines:
0x, #, or spaces automaticallyG or Z)65536, not 6.5536e+4)In web design, color values are expressed in hexadecimal. Converting each component (red, green, blue) to decimal allows designers to understand the RGB intensity:
#FF5733FF → 25557 → 8733 → 51Several data formats use hexadecimal encoding:
00:1A:2B:3C:4D:5E → each hex pair can be converted to decimalTest your knowledge with these:
2F to decimalDEADBEEF in decimal?3E8 to decimal (hint: common HTTP code)The Hex to Decimal Converter is an essential tool for developers, students, engineers, and anyone dealing with digital systems. By converting hexadecimal into readable base-10 numbers, you gain a clearer understanding of data, addresses, and encoded values. Use this converter anytime you need fast, accurate, and clean conversions between hex and decimal.
Explore more number system tools on Easy Converters to enhance your coding and learning journey.