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Estimate a true car payment from price, tax, dealer fees, add-ons, trade payoff, rebate and down payment. Compare two written…

Convert hours and clock minutes into exact decimal hours, total minutes and payroll hundredths.

Calculate a 1.5x hourly rate, regular pay, overtime pay, gross pay and the premium-only portion.

Add two durations and show normalized hours, minutes, seconds, total minutes and decimal hours.

Convert beverage volume and ABV into grams of ethanol plus US, UK and Australian reference units.

Estimate a broad time-to-zero range from beverage inputs while making clear that no online result makes driving safe.

Convert an hourly rate and work schedule into weekly, monthly and annual gross salary without silently adding overtime.

Estimate a due date from LMP, conception, ultrasound dating, a known due date or IVF transfer with ACOG-aligned limitations.

Estimate ovulation and a broader possible conception window from LMP and cycle length with an explicit variability warning.

Split workweek hours at a chosen threshold and calculate regular, overtime, gross and premium-only pay.