Practical guides
Useful answers. No detours.
Straightforward references and step-by-step help for the small image and computer tasks that interrupt your day.
Video Aspect Ratios and Sizes for Every Platform
Pixel sizes for 9:16, 16:9, 4:5 and 1:1 video on YouTube, TikTok, Reels and other platforms, plus how to pick a ratio for AI video.
See video sizes →Audio formatsWAV vs MP3: File Size, Quality and Which to Use
Measured file sizes for WAV and 128–320 kbps MP3, plus a task-by-task table for choosing a format.
Compare WAV and MP3 →Photo printingHow Big Is a 5×7 Photo?
Inches, centimeters and pixels for 5×7 prints, with exactly how much a phone or camera photo is cropped.
Prepare a 5×7 photo →Paper size & printingB5 Paper Size in CM, MM, Inches and Pixels
ISO B5 and JIS B5 dimensions, pixel sizes at 300 PPI, and how B5 compares with A4 and A5.
See B5 dimensions →Paper size & printingA5 Paper Size in CM, Inches, MM and Pixels
Set up an A5 page with accurate dimensions, pixel tables, A4 folding examples and practical bleed guidance.
See A5 dimensions →Photo printingHow Big Is a 4×6 Photo?
Check inches, centimeters and pixels, then compare cropping with borders before preparing a 4×6 print.
Prepare a 4×6 photo →Image compressionHow to Compress an Image to 50KB Online
Reduce a JPG, PNG, or WebP image to 50KB or less while preserving as much useful detail as possible.
Read the 50KB guide →Image dimensionsA4 Paper Size in Inches, CM, MM and Pixels
Find the exact A4 dimensions and the correct pixel sizes for screen, everyday print, and 300 PPI output.
See A4 dimensions →WindowsMute Windows When You Lock Your PC
Compare options for automatically silencing Windows audio when you step away from your PC.
Read the Windows guide →