Sci-Notation Swift - Scientific Notation Converter
Stop counting zeros and start solving. Sci-Notation Swift instantly converts between decimal numbers and scientific notation, handling everything from Avogadro's number (6.022 × 10²³) to Planck's constant (6.626 × 10⁻³⁴). Whether you're working with astronomical distances, molecular measurements, financial figures in the trillions, or any number that makes your calculator display 'E', this tool converts it cleanly both ways. Enter a massive decimal to get proper scientific notation, or input a coefficient and exponent to see the full decimal expansion. All conversions happen in your browser no servers, no data collection, no waiting. Perfect for students, scientists, engineers, and anyone dealing with numbers that don't fit on regular displays.
Supports numbers up to 15 significant digits (JavaScript precision limit)
Example: 1.23 × 10⁶ = 1,230,000
Conversion Result
Power of 10 Reference
| Name | Power | Decimal |
|---|---|---|
| Trillion | 10¹² | 1,000,000,000,000 |
| Billion | 10⁹ | 1,000,000,000 |
| Million | 10⁶ | 1,000,000 |
| Thousand | 10³ | 1,000 |
| One | 10⁰ | 1 |
| Thousandth | 10⁻³ | 0.001 |
| Millionth | 10⁻⁶ | 0.000001 |
| Billionth | 10⁻⁹ | 0.000000001 |
| Trillionth | 10⁻¹² | 0.000000000001 |
How to Convert Scientific Notation
- Choose your conversion direction using the toggle buttons: 'Decimal → Scientific' or 'Scientific → Decimal'
- For decimal to scientific: Enter your number (like 123000000 or 0.0000456) in the input field
- For scientific to decimal: Enter the coefficient (like 1.23) and exponent (like 8) separately
- View results instantly with both notations, copy buttons for different formats, and a breakdown explanation
Why Scientific Notation Matters
Scientific notation expresses numbers as a coefficient between 1 and 10 multiplied by a power of 10. The format a × 10^n makes it easy to work with extremely large or small numbers. For example, the speed of light (299,792,458 m/s) becomes 2.998 × 10⁸ much easier to read and compare. This converter normalizes any input to proper scientific form where the coefficient is always between 1 and 10.
The tool provides multiple copy formats: standard notation (1.23 × 10^6), E notation (1.23e6) for programming and spreadsheets, and the full decimal for when you need every digit. The breakdown section helps students understand what the exponent actually means positive exponents multiply, negative exponents divide.
Pro tip: Click the example buttons to see famous scientific constants converted. Avogadro's number and Planck's constant are great for understanding the scale of scientific notation from the extremely large to the impossibly small.