Find how many days are left until your next birthday.

Estimate trip fuel cost based on distance, fuel efficiency, and fuel price.

Calculate running or walking pace from distance and time.

Scale recipe ingredients up or down based on desired servings.

Split a bill between people, including optional tax and tip.

Calculate tip amount, total bill, and split cost per person.

Estimate travel time based on distance, average speed, and optional stops.

Compare products by calculating price per unit.

Estimate driving range from available fuel and average fuel efficiency.

Paste text and estimate reading time from its word count and reading speed.

Count words, characters, sentences, paragraphs, and estimated reading time from pasted text.