# Free tools

> Nine free tools that work in the browser, one for each Lucernel app. Each shows its method and sources.

Canonical: https://lucernel.com/tools

- [Bible verses for temptation](https://lucernel.com/tools/bible-verses-for-temptation) (from Renounce): Pick what you are facing right now. You get one verse from the World English Bible and a short prayer to say with it, and a one-minute pause if the urge is still loud.
- [VIN decoder and recall check](https://lucernel.com/tools/vin-decoder) (from Carumi): Type a 17-character VIN. You get what NHTSA knows about the vehicle, whether the check digit is valid, and the recalls issued for that make, model and year.
- [Bristol stool chart](https://lucernel.com/tools/bristol-stool-chart) (from Gutli): Pick the type that looks most like yours. You see what that type usually means, and the signs that mean you should call a doctor.
- [Barometric pressure headache forecast](https://lucernel.com/tools/barometric-pressure-headache-forecast) (from Miggry): Enter a US ZIP code or use your location. You see the pressure for the next three days and the hours when it falls fastest, the change many people with migraine watch.
- [Lawn fertilizer calculator](https://lucernel.com/tools/lawn-fertilizer-calculator) (from Lawnzo): Enter the three numbers on the bag, your lawn size and the rate of nitrogen you want. You get the pounds of product per 1,000 sq ft, the total, and how many bags to buy.
- [Book reading time calculator](https://lucernel.com/tools/reading-time-calculator) (from Iqumi): Enter the pages of a book or its word count. Use the average adult reading speed or measure your own in one minute, and see how long the book takes and when you finish.
- [Horse weight calculator](https://lucernel.com/tools/horse-weight-calculator) (from Trotley): Measure the heart girth and the body length with a soft tape. You get the estimated weight in pounds and kilograms, using the formulas in the Merck Veterinary Manual.
- [Dog due date calculator](https://lucernel.com/tools/dog-due-date-calculator) (from Littero): Choose the date you know: ovulation, the LH peak or the breeding. You get the expected whelping window and the checkups along the way.
- [Gundam Card Game odds calculator](https://lucernel.com/tools/gundam-card-game-odds-calculator) (from GunTomo): Enter how many copies you run and the turn you need them by. You get the exact chance, with the 50-card deck, the 5-card hand and the one redraw built in.