Calculators

Calculates the approximate wattage of a light source based on its lumen output and efficiency (lumens per watt). This helps estimate energy consumption.

Calculates the size of curtains needed based on the desired length, the width of the window, and the desired fullness.

Calculates the recommended turbocharger size based on engine displacement, desired horsepower, and redline RPM.

Calculates the cheapest combination of public transport tickets based on individual ticket prices and travel needs.

Calculates the cost of charging a Tesla based on battery capacity, charging rate, and electricity cost.

Calculates the monthly cost of driving to work and compares it to the cost of public transportation, helping you decide which option is more economical.

Converts decimal numbers to their hexadecimal equivalents.

Converts numbers from billions to trillions.

Calculates support reactions for a simply supported beam with a single point load.

Calculates the amount of gravel needed for a driveway and the estimated cost. Includes calculations for both cubic yards and tons, and offers a cost estimate based on a per-yard price.