Free calculators for YouTube, Shorts, TikTok & Instagram creators
Know your numbers.
Grow your channel.
Earnings estimates, engagement rates, thumbnail and title checks — fast, free, and every formula explained.
Everything you need to read your stats
YouTube Money Calculator
Estimate earnings from views, niche and where your audience lives.
Shorts Earnings Calculator
See what your Shorts views could pay from the shared revenue pool.
Engagement Rate Calculator
Turn likes, comments and shares into one clear engagement rate.
Thumbnail Size Checker
Check size, ratio and file weight against YouTube’s rules.
Title Length Checker
Count characters and see where long titles may get cut off.
More tools on the way
TikTok and Instagram earnings, RPM and watch-time calculators are next.
Free YouTube and creator calculators that show their working
ReachMath answers the questions creators actually ask about their numbers. How much does YouTube pay for 100,000 views? What do Shorts earn from the shared revenue pool? Is a 4% engagement rate good on TikTok or Instagram? Will this thumbnail look sharp, and will this title get cut off?
The YouTube money calculator and the Shorts earnings calculator turn views, niche and audience location into an honest earnings range, because nobody outside YouTube can know your exact RPM. The engagement rate calculator works for YouTube, TikTok and Instagram, by views or by followers. The thumbnail size checker and title length checker test your upload against YouTube’s current rules before you publish.
Every tool is free, runs in your browser, needs no sign-up, and explains its formula and sources on the same page.
Built on official rules, not guesswork
Every tool shows its formula and sources, so you know exactly where a number comes from.
Official platform rules
Revenue shares, size specs and limits come from each platform’s own help pages.
Honest ranges
Earnings tools give a low-to-high range, never a fake exact number, with every assumption listed.
Reviewed regularly
Each tool shows a “last reviewed” date and is updated when platforms change their rules.
Hi, I’m Muhammad Nabeel. I built these tools because I needed them.
I run Court Cricket, a cricket Shorts channel, and got tired of calculators that hide how they work. Every tool on ReachMath is the one I wanted when I started.