Calculators

Calculates the weight of a plate-shaped material given its dimensions and material density.

Calculates the amount of bleach and water needed to achieve a desired chlorine concentration for disinfection purposes.

Calculates desired heart rate ranges for exercise intensity based on maximum heart rate.

Calculates the number of face masks needed and estimates the total cost, based on usage frequency and mask price.

Calculates traffic density based on flow and speed.

Calculates the recommended depth for fence posts based on the post height and soil conditions.

Estimates the amount of biologically active testosterone based on total testosterone, SHBG, and albumin levels.

Tracks human chorionic gonadotropin (hCG) doubling time in early pregnancy. This calculator estimates the time it takes for hCG levels to double, which is an indicator of a healthy pregnancy.

Calculates the cost per use and the estimated lifespan of a tube of toothpaste.

Calculates the molarity of an unknown solution using titration data.