Finance & Business3 weeks ago
Credit Card Calculator: Find the Card That Pays You Most | Cardocrat
Calculate which credit card will earn you the most based on your real spending patterns.
@cardocrat · X
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Calculate which credit card will earn you the most based on your real spending patterns.
@cardocrat · X
Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other
Free online calculators and converters for finance, health, and education without signup.
@Toolvica · X
Estimate take-home pay for Canadian provinces and U.S. states with simplified tax calculations.
@takehomeTax · X
US and Canada income tax calculator that takes RSU into account
Calculate how much meetings and work projects actually cost your company per day.
@mafaldateles_ · X
My first web app is out! I built a tiny tool to help answer a simple question: could that meeting have been an email? You decide.
Free ESOP calculator to estimate startup equity value, dilution, vesting, and exit scenarios.
@SheshankSi60747 · X
Free Etsy profit calculator that includes fees, offsite ads, materials, packaging and your labor. Compare pricing scenarios and export PDF/CSV — no signup.
@5150_MadMan · X
Check out what I just built with Lovable!
Instant calculators for estimating construction materials like roofing, concrete, gravel, paint, deck, and fence.
@TridibS79303970 · X
Just shipped the first tool for BuildCalcHub Roofing Calculator is now live. Building a collection of free construction calculators—one tool at a time. Next: Concrete, Gravel, Paint, Deck, Fence & Tile. 🔗 #buildinpublic #indiedev #webdev #opensouce
Free calculators for analyzing startup and marketing metrics.
@NAVNEET_CODES · X
Free AI, startup, and marketing calculators built for founders, marketers, students, and business professionals.
Model your equity, taxes, and net worth with free calculators and paid scenario planning.
charleswcho · HN
Continuum – Financial simulations for DIY multimillionaires
A calculator and data manager for LORT game statistics and analysis.
LORT Calculator — Stream 游戏 LORT 工具网站
Free calculators for DIY home projects like woodworking, decks, concrete, and drywall.
u/CaboWabo55 · Reddit
Built a DIY calculator site in a weekend — betting on "boring tools" over content After my last project (an AI debate platform) got rejected by AdSense for "low value content," I went the opposite direction: no content treadmill, no AI features, no backend. Just genuinely useful calculators. studandslab.com — 10 free calculators for woodworking and home projects (board feet, stair stringers, concrete, drywall). Everything runs client-side, so hosting is free and every visitor costs me $0.