Text size calculator

🧮 Text Size Calculator – Measure Text in Bytes, Kilobytes & Characters

Instantly calculate the size of any text or string with encoding support

Use our free Text Size Calculator to accurately determine the size of any string in bytes (B), kilobytes (KB) or characters. This tool supports UTF-8 and other common encodings, helping developers, SEO experts, and webmasters evaluate string limits and storage usage.

Whether you're checking text for API limits, storage quotas, or form validations, this calculator gives you real-time feedback on your text size.

🔍 What You Can Calculate

• 📦 Text size in bytes, KB, or MB
• 🔡 Total number of characters (with and without spaces)
• 📊 Byte count based on UTF-8, UTF-16, ASCII or other encoding
• 💾 Check data size before sending it to APIs or databases

⚙️ How It Works

1. Paste or type your text into the input box
2. Select your preferred character encoding (default: UTF-8)
3. The calculator instantly shows the size in bytes, kilobytes & characters

✅ Use Cases for Text Size Calculation

• 📧 Check input size before submitting web forms or emails
• 🧠 Optimize strings for mobile apps, SMS, or notifications
• 💻 Avoid exceeding API character or byte limits (e.g., Twitter, OpenAI)
• 📂 Estimate storage needs for documents, JSON, XML, and databases
• 🌐 Measure content size for SEO meta tags and previews

📉 Example Output Table

🛡️ Privacy & Performance

All calculations happen in your browser. No data is stored, logged, or transmitted. Fast, safe, and anonymous.

🔗 Related Tools

Combine this tool with our Password Strength Checker, Meta Tags Checker or UTF-8 Decoder to optimize your web or app development.