C

calculator

Firmware for the WP43 pocket calculator: a super-set of the legendary HP-42S RPN Scientific

projectILE is a trajectory calculator made in C++

Find the day of the week for any date, with ISO week number, day of year, quarter, weekday/weekend c

Add VAT to a net price or remove VAT from a gross price, with quick-preset rate buttons and live rec

Browser-based unit-converter tool. Live demo at file-converter-free.com

Convert Unix timestamps to human-readable dates and back, with a live world clock for 22 cities and

Add or subtract two time durations (hours, minutes, seconds) with overflow/borrow handling and displ

Solve for speed, distance, or time given the other two values, with unit conversion across km/h, mph

Calculate estimated due date using Naegele's rule with cycle adjustment, conception date, gestationa

Browser-based percentage-calculator tool. Live demo at file-converter-free.com

Calculate monthly mortgage payments including principal, interest, property tax, and insurance, with

Calculate monthly loan payments, total interest, and a full amortization schedule using the standard

Calculate simple and compound interest with effective annual rate and a year-by-year schedule, entir

Calculate electricity consumption and cost for any appliance by wattage, daily usage hours, and pric

Calculate final prices after one or two stacked percentage discounts, with quick-preset buttons and

Calculate the exact difference between two dates in years, months, days, weeks, hours, and minutes,

Calculate file download/upload time from size and speed, or required speed from size and time, with

Estimate daily calorie needs using the Mifflin-St Jeor equation for BMR and TDEE with activity level

Calculate Body Mass Index with metric and imperial unit support, category classification, and a heal

Browser-based age calculator — no server required. Live demo at file-converter-free.com