Home & property
Buying, selling, or just curious about the house.
Home Sale Capital Gains Calculator
Estimate the federal capital-gains tax on selling your home, including the $250k / $500k exclusion.
Flood Zone Lookup
Look up the FEMA flood zone for a location so you know what you're buying into.
Seismic Risk Lookup
Check USGS earthquake hazard for any U.S. location in plain language.
Homebuyer's Inspection Red-Flag Kit
What to look for before you buy: the walk-through scorecard and red flags that separate cosmetic issues from expensive ones.
Home Seller's Prep Kit
Prep where it pays, price to the comps, and know your real net proceeds before you accept an offer. Includes fill-in worksheets.
HVAC
Don't overpay to heat and cool your home.
Is My HVAC Quote Fair?
A quick, independent sanity-check on a furnace, AC, or heat-pump quote before you sign.
HVAC Design Temperatures
The ACCA outdoor design temps a contractor should use to size your system correctly.
HVAC Quote-Defense Kit
The checklist and scripts homeowners use to walk through a padded quote with the salesperson in the room.
Freelance & taxes
For 1099 contractors, freelancers, and solo consultants.
TaxQuarters — Self-Employment Tax Calculator
Estimate your 1099 self-employment tax, federal income tax, and quarterly estimated payment in seconds — built on published IRS & SSA figures.
Consultant Proposal & SOW Kit
Win the project, then protect it: proposal structure, a clear statement-of-work template, and change-order scripts for solo consultants.
Garden & weather
When to plant, and what the weather usually does.
Frost Dates & Planting Calendar
Your average frost dates, USDA hardiness zone, and a planting calendar — by ZIP code.
GrowGuide Almanac
Local frost dates and planting calendars for hundreds of U.S. cities.
Typical Weather
What the weather is normally like on any date and place — great for planning trips and events.
Health
Simple numbers for hydration, protein, and recovery.
Travel
Everything here is free and runs in your browser — most tools never send your inputs anywhere. The paid guides are optional. These are educational tools, not professional, legal, or tax advice.