Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal bases instantly.
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Water Intake Calculator
Calculate your recommended daily water intake based on weight, activity level, and climate.
Fuel Cost Calculator
Calculate trip fuel cost, gallons used, and cost per mile for any vehicle and distance.
Flooring Calculator
Calculate flooring area for multiple rooms with waste percentage and box count.
Pregnancy Due Date Calculator
Calculate your estimated due date from LMP, conception date, or ultrasound. Includes trimester tracking.
Break-Even Calculator
Find your break-even point in units and revenue. Essential for business planning and pricing.
Random Number Generator
Generate random integers, decimals, dice rolls, or coin flips instantly.
Paint Calculator
Calculate how many gallons of paint you need based on room dimensions, doors, windows, and coats.
Running Pace Calculator
Calculate running pace, finish time, or distance for any race or training run.
Work Hours Calculator
Track weekly work hours by day with start/end times, breaks, and optional hourly pay.