Example: Percentage
Convert 12.5% to decimal and basis points.
Result: —
Percentage • Ratio • SI Prefixes • Number Systems • Time Zones • Coordinates • Typography • Paper Sizes
Science & Tech Converter Hub
One interactive page that groups many "utility" conversions used in math, science, engineering, programming, design and navigation. Select a category to see clear educational notes, the most common formula and worked examples.
Percent: part ÷ whole × 100
SI: k=10³, M=10⁶, m=10⁻³, µ=10⁻⁶
Base: 1010₂ = 10₁₀
Angle: π rad = 180°
Time: UTC offsets only
How to use
Choose a category, pick From and To, enter a value, and the result updates instantly. Swap reverses units and Copy copies your result.
Best for
Homework checks, lab reports, data sheets, engineering notes, programming conversions, design specs (paper, typography) and quick math.
Important note
Some categories are "education shortcuts" (Algorithms, Calculus, Chemistry, etc.). They show definitions and examples, but not every topic is a unit conversion.
Interactive Converter
Your category list is included exactly. Some categories map to the same converter (example: Binary and NumberSystems).
Category explanation
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Select a category to see what it means and where it is used.
Base unit: —
Plain language
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Common formula
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Real world uses
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Tip: You can type commas (like 12,500). The converter reads it as 12500.
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Enter a value to convert
Conversion Formula
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Notes: Some categories are concept pages (Algorithms, Calculus, Chemistry). For those, the panel shows education and examples but the "conversion" may be a simple helper (example: percent ↔ decimal) or a base conversion (binary/hex/decimal).
Detailed Reference Charts
Visual comparisons and reference tables for common conversions across all categories.
SI Prefixes Reference
Tera (T)
10¹²
Giga (G)
10⁹
Mega (M)
10⁶
Kilo (k)
10³
Base
10⁰
Milli (m)
10⁻³
Micro (µ)
10⁻⁶
Nano (n)
10⁻⁹
Number Systems Conversion Table
Decimal
Binary
Hex
000000
501015
101010A
151111F
161000010
3210000020
25511111111FF
Angle Conversions
Degrees
Radians
Gradians
0°00
45°π/450
90°π/2100
180°π200
360°2π400
Data Transfer Rates
Common Speeds
• 1 Mbps = 125 KB/s (download)
• 10 Mbps = 1.25 MB/s
• 100 Mbps = 12.5 MB/s
• 1 Gbps = 125 MB/s
Note: Uses decimal multiples (1 Mbps = 1,000,000 bit/s) and 8 bits = 1 byte
Worked Examples
These examples are pre computed so visitors can sanity check results and learn common magnitudes.
Examples are computed on page load
Example: Number Systems
Convert 101101₂ to decimal and hexadecimal.
Result: —
Example: SI Prefixes
Convert 3.2 km to meters and micrometers.
Result: —
Example: Data Transfer
Convert 100 Mbps to MB/s.
Result: —
Example: Typography
Convert 12 pt to px (at 96 dpi).
Result: —
Example: Angle
Convert 45° to radians.
Result: —
Example: Astronomical Distance
Convert 1 light-year to kilometers.
Result: —
Example: Paper Size
A4 dimensions in inches.
Result: —
Unit Comparison Visualizations
SI Prefix Scale (Base = 1 meter)
Kilometer (km)
Meter (m)
Millimeter (mm)
Micrometer (µm)
Data Transfer Speed Comparison
1 Gbps (Gigabit)
100 Mbps (Fast Ethernet)
10 Mbps (Legacy)
1 Mbps (Mobile)
FAQ
What is the difference between decimal, binary and hexadecimal?
Decimal is base 10, binary is base 2 and hexadecimal is base 16. They represent the same values using different digits and place values.
How do SI prefixes work?
Prefixes scale a base unit by powers of ten. Example: k = 10³, M = 10⁶, m = 10⁻³ and µ = 10⁻⁶.
Are time zones handled with daylight saving time?
This page provides fixed UTC offset conversions. DST rules vary by location and date and are not automatically applied here.
What is the difference between Mbps and MB/s?
Mbps (megabits per second) is a data rate unit. MB/s (megabytes per second) is 8 times larger because 1 byte = 8 bits. So 100 Mbps = 12.5 MB/s.
Why use radians instead of degrees?
Radians are the natural unit in calculus and physics. Most programming languages use radians for trigonometric functions. One full rotation is 2π radians (or 360°).