Do QR Codes Expire? Static vs Dynamic QR Codes
Static QR codes never expire. Dynamic QR codes can stop working when a paid plan ends. How to tell them apart and make a QR code that lasts.
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Social Media Character Limits for X, Instagram, LinkedIn and Texts
X posts allow 280 characters, Instagram captions 2,200 and LinkedIn posts 3,000. A quick chart of limits, how emojis and links count, and the hashtag cap.
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What Is an AVIF File? AVIF vs WEBP vs JPG
AVIF is a modern image format built on the AV1 video codec. See how it compares to WEBP and JPG, which browsers support it, and how to convert it to PNG.
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What Is a WEBP File? WEBP vs PNG and JPG Explained
WEBP is an image format from Google that makes smaller files than JPG and PNG. Learn how it compares to PNG, how to open it, and how to turn it into PNG.
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Title Tag and Meta Description Length: What Google Actually Says
Google has no character limit for titles or meta descriptions. It cuts them to fit the screen. Here is a safe length to aim for and how to write both well.
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How Long Does It Take to Read 1,000 Words? Reading and Speaking Times
1,000 words takes about 4 minutes to read silently and about 7 minutes to say out loud. Chart for 100 to 5,000 words, plus words for 1 to 20 minute speeches.
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How to Calculate Percentage Increase (and Decrease)
Percentage increase = (new − old) ÷ old × 100. Worked examples, the decrease formula, Excel and Google Sheets formulas, and mistakes to avoid.
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How to Calculate Percent Off a Price (With Examples)
Work out a sale price in seconds. The percent off formula, mental math shortcuts, stacked discounts, sales tax, and how to find the discount from two prices.
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How to Convert HEIC to JPG on Windows (3 Free Ways)
Convert iPhone HEIC photos to JPG on Windows 10 or 11. Use a free browser converter, the Photos and Paint apps, or change one iPhone setting.
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How Many Pages Is 1,000 Words? Single and Double Spaced
1,000 words is about 2 pages single spaced and 4 pages double spaced. See a quick chart for 250 to 5,000 words and what changes the page count.
