Math hub
Scientific notation, binary/hex, and number system tools.
About math conversions
Math converters handle number-system translation and notation: scientific (E) notation, binary, octal, hexadecimal and decimal. Whether you're debugging a memory dump, prepping for a CS exam or writing scientific copy that needs proper exponent formatting, these tools convert losslessly and explain the underlying place-value math.
All math tools
Every converter and calculator in this hub, ready to launch.
When you'll reach for these
Practical scenarios where this hub shines.
Debugging hex dumps
Flip between 0x notation and decimal in a single field.
Homework & exams
Verify base conversions step-by-step.
Writing scientific copy
Render very large or small numbers in clean exponent form.
Key formulas
- Decimal → Binary
Divide by 2, collect remainders bottom-up - Hex digit value
0–9, then A=10, B=11, …, F=15
Common mistakes
Off-by-one on bit counts
An 8-bit value holds 256 distinct states (0–255), not 255.
Did you know?
Hex is base-16
It's chosen because 16 = 2⁴ — every hex digit maps cleanly to four bits.
Frequently asked
What is scientific notation good for?
It compactly expresses very large or very small numbers — 6.022 × 10²³ atoms per mole is easier to write and reason about than 602,200,000,000,000,000,000,000.
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