Numbers worth counting on
Free calculators that give straight answers — every formula sourced and dated, every result computed in your browser. No signup, no uploads, nothing stored.
Investing
5 toolsCompounding, averaging down, your FIRE number, and what a dividend really pays — modelled honestly, lump-sum comparisons included.
DRIP · Stock Average · DCA · FIRE · Dividend Yield
Creator
5 toolsWhat your views actually pay, how your engagement stacks up against real benchmarks, and the production math for scripts, thumbnails and crops.
YouTube RPM · Engagement Rate · Thumbnail Checker · Script Timer · Aspect Ratio
Freelance
2 toolsYour real take-home after platform and withdrawal fees, and project quotes that actually cover overhead and margin.
Fiverr & Upwork Fees · Freelance Quote
Fitness
2 toolsStrength and body-composition estimates from published formulas — with honest notes on how accurate each method really is.
One-Rep Max · Body Fat