Paper Towel Consumption Estimator – Online Weekly Roll Use
Track how many rolls you use per month. Input sheet count to find cost per sheet. Reduce waste.
UD5 Toolkit
Track how many rolls you use per month. Input sheet count to find cost per sheet. Reduce waste.
Breakdown of expected costs (materials, appliances, etc.) for a tiny house. Adjust percentages or enter custom. Local calculation.
Estimate BAC based on gender, weight, drinks consumed, and time. Uses Widmark formula. Educational tool, never encourage drunk driving. Local only.
Build a virtual grocery list with estimated prices and see total before you shop. Adjust quantities, mark bought items. Data stays in browser.
Estimate hiking time using Naismith's rule (distance + elevation gain). Adjust for terrain and fitness. Plan your outdoor adventure.
Input room dimensions and number of coats to estimate how many gallons/litres of paint you need. Excludes doors/windows optionally. Local calculator.
Estimate due date from last menstrual period or conception date. Uses Naegele's rule and shows week-by-week milestones. Local calculator for informational use.
Approximate monthly child support obligation based on both parents incomes and number of children. Uses simplified model for educational reference. Not legal advice.
Estimate body fat percentage using neck, waist, hip (if female) measurements. Supports US Navy, Covert Bailey, and 3-site skinfold methods. No data sent to server.
Estimate how many MB/GB your storage can hold based on navigator.storage.estimate() and display as a pie chart.
Roughly estimate your BAC based on weight, gender, drinks consumed, and time. Educational; do not drive.
Answer a few questions about travel, diet, and energy use to estimate your carbon footprint. Awareness tool.