Calculate the Dots Per Inch (DPI) or Pixels Per Inch (PPI) based on image dimensions and physical size.
Calculated DPI:--
Required Height (Inches):--
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## 🛠️ Tool #84: Text Case Converter
An essential utility for writers, editors, and students, providing conversion to Sentence case, Title case, and more. This is distinct from your word counter and slug generator.
### **Code & Setup**
1. **Title:** **Free Online Case Converter (Sentence, Title, Upper, Lower)**
2. **Labels:** `Text`, `Utility`
```html
Text Case Converter
Easily convert your text between sentence case, title case, uppercase, and lowercase.
---
## 🛠️ Tool #85: Scientific Notation Converter
A fundamental tool for students, engineers, and scientists. This is a highly specialized math tool that is completely different from your financial and simple percentage calculators.
### **Code & Setup**
1. **Title:** **Free Online Scientific Notation Converter**
2. **Labels:** `Math`, `Science`, `Converter`
```html
Scientific Notation Converter
Convert numbers between Standard Notation (e.g., 100000) and Scientific Notation (e.g., 1.0 x 10^5).