Calculators

Calculates your Grade Point Average (GPA) based on your grades and the credit hours for each course.

Calculates the corrected QT interval (QTc) on an ECG, adjusting for heart rate, to assess the risk of arrhythmias.

Estimates the risk of major bleeding for patients on anticoagulation for atrial fibrillation.

Calculates the minimum required size of a junction box based on the number and size of conductors entering the box.

Calculates the number of wallpaper rolls needed for a room based on the room's dimensions and wallpaper roll size.

Calculates the angle a ladder forms with the ground, given the ladder's length and the distance from the base of the structure.

Calculates the number of pre-mixed concrete bags or the quantities of ingredients needed to mix concrete for columns, based on column dimensions.

Calculates the required amount of each substance in a mixture based on a given mixing ratio and total desired amount.

Calculates the alligation ratios needed to mix two solutions of different concentrations to achieve a desired intermediate concentration.

Calculates the molar mass of a gas using the ideal gas law (PV = nRT), where molar mass (M) = mass / moles. This calculator rearranges the ideal gas law to solve for molar mass: M = (mass * R * temperature) / (pressure * volume).