How to Calculate Sales Tax: Formula, Examples & State Rates
The sales tax formula, how to find tax from a total, and how to combine state and local rates, with real examples.
Read the guideBlog
Help for students and everyday workers
Short guides that show you exactly which free tool to open and what to click. No account, no subscription. Tools N Go already offers 25+ tools in your browser, with more on the way.
How to Calculate Closing Costs and Cash to Close (2026 Guide)
Estimate closing costs and cash to close before you make an offer, for financed and cash purchases.
Read the guide
How to Calculate Fantasy Football Points (Standard, Half-PPR, PPR)
Common scoring rules and step-by-step examples for quarterbacks and receivers in every league format.
Read the guide
Free Background Remover for LinkedIn Photos and Side Projects
Update your LinkedIn photo or clean up a product shot for a post without paying for another subscription.
Read the guide
Make a Free QR Code for Your Business Card, Flyer, or LinkedIn Post
Freelancers and small teams use QR codes on resumes, booth tables, and car magnets. Here is a simple workflow that costs nothing.
Read the guide
iPhone HEIC Photos Won’t Open at Work? Convert to JPG Free
Sent a photo from your iPhone and your coworker cannot open it? Fix the format in one step, locally in your browser.
Read the guide
Send a Professional Invoice Without QuickBooks or a Login
Got paid on Venmo but need a paper trail for taxes or a client? A clean invoice takes five minutes and zero subscription.
Read the guide
First Job, First Budget: Free Mortgage and Rent Math Tools
LinkedIn says you leveled up. Your bank account still needs a plan. Run the numbers privately before you sign a lease.
Read the guide
Free PDF Tools for Students: Submit Assignments Without Signup
Late-night assignment due? Merge scans, shrink file size, and upload without paying for Adobe or creating another account.
Read the guide
Hourly Workers: Estimate Your Take-Home Pay (Free, No Account)
Budget rent, gas, and groceries with a realistic take-home number. No signup, just enter your pay and withholding once.
Read the guide
Clean Excel and CSV Files Before Work or Class (Browser, Free)
Messy export from your job or a group project? Fix duplicates and file size limits without buying extra software.
Read the guide