Everyday

Everyday calculators for daily life tasks and quick calculations.

Sleep Calculator

Find the best times to sleep or wake up based on 90-minute sleep cycles for more restful sleep.

Calculate your grade point average (GPA) from your courses with letter or numeric grades.

Calculate fuel cost for your trip based on distance, vehicle efficiency, and fuel price with ethanol comparison.

Draw random winners from a list of names for raffles and contests. Fair randomness with animated reveal.

Roll various types of dice (d4, d6, d8, d10, d12, d20, d100) for games and decisions with animated results and roll history.

Flip a coin for quick decisions. Supports multi-flip (1-100 coins), running statistics, and flip history.

Convert times between different time zones. Live updating, common presets, and support for multiple target zones.

Stopwatch with lap times and countdown timer with audio alert. All in your browser.

Scale recipe ingredient quantities up or down based on the number of servings.

Compare prices per unit between two products to find the best deal.

Estimate trip costs including transport, lodging, food, and extras.

Convert numbers to their written form in English, Portuguese, or Spanish.

Split a gift budget across multiple recipients with custom weights.