Video & Photography
Aspect Ratio Calculator
Calculate screen resolutions and proportions for YouTube, cinema, and web design.
LiveFrame Rate (FPS) Calculator
Calculate total frames based on video length and frame rate (24fps, 30fps, 60fps).
LiveVideo Bitrate Calculator
Estimate video file sizes based on duration, resolution, and bitrate settings.
Web Development
Everyday Math
How it works
Three principles that guide every tool we build.
Instant results
Type your numbers. The answer appears as you type. No waiting, no page reloads.
Copy & paste
Grab the result with one click. Paste it directly into your editor, spreadsheet, or design tool.
Keep moving
No account required, no paywall. The tool is there when you need it and gets out of the way when you don't.
Latest insights for Creators & Devs
Read our latest guides and data breakdowns. Whether you are calculating total frames for a cinema shoot or trying to optimize your daily health routine, we break down the numbers that matter.
The "Nerve-Glow" Anti-Aging Breakthrough: Your Skin's Nerves Control Your Collagen
A September 2026 Cell study proves that peripheral nerves control collagen production. Glutamatergic neurons secrete glutamate to fibroblasts, and when this neural network degrades, your skin literally forgets how to build structural proteins.
Stop Chasing Eight Hours of Sleep Because Your Tracker Is Lying to You
A year-long University of Michigan study of 1,476 participants proves the eight-hour sleep rule is a myth. Optimal duration varies by individual, and stressing over your tracker score causes more harm than the deficit itself.
Your Obsession With HIIT Is Literally Shrinking Your Brain
A nine-year follow-up from Norway's Generation 100 trial reveals that high-intensity interval training causes greater hippocampal volume loss than moderate exercise. The scan data contradicts fitness marketing.
Stop Buying Nootropics and Start Eating Like Your Brain Depends on It
A January 2026 systematic review of 26 studies and 16,000+ participants confirms the MIND diet is the most powerful neuroprotective tool available — outperforming every cognitive supplement on the market.
The Ozempic Pill Nobody Prescribed You Just Outperformed Starvation in a Lab
A September 2026 Nature study gave semaglutide to aging mice without calorie restriction. The drug outperformed starvation on cognitive metrics and activated conserved longevity pathways.
The Ozempic Pill Nobody Prescribed You Just Outperformed Starvation in a Lab
A September 2026 Nature study gave semaglutide to aging mice without calorie restriction. The drug outperformed starvation on cognitive metrics and activated conserved longevity pathways.
About AzenHub
Welcome to AzenHub, your central hub for free, high-quality online utility tools. We built this platform because creators and devs are tired of visiting calculator websites filled with aggressive pop-ups, confusing interfaces, and slow load times. We believe professional online tools should be fast, accessible, and completely free of friction.
Whether you are a video editor trying to figure out the exact pixel dimensions for a 21:9 ultrawide monitor, a web developer converting CSS units, or a designer building responsive layouts, our tools are built to give you instant answers without the clutter. We design every calculator specifically for the daily workflows of modern creators and devs.
All calculations are performed locally in your browser, ensuring fast results even on slow connections. Bookmark our hub and check back weekly as we release new free online utility tools for your specific industry.
Designed with intention. Built for focus.