Calculators

Converts numbers up to 3,999,999 into Roman numerals and provides a breakdown of the Roman numeral system.

Calculates your recommended daily intake of macronutrients (carbohydrates, protein, and fat) based on your individual needs and goals.

Calculates the hit points (HP) for characters or monsters in Dungeons & Dragons 5th Edition, based on their Constitution modifier and Hit Dice.

This calculator assesses the level of frailty in older adults based on accumulated deficits. The Frailty Index is calculated by dividing the number of deficits present by the total number of deficits considered. A higher score indicates a greater level of frailty.

Calculates the taper length and angle based on the large diameter, small diameter, and taper length.

Calculates the estimated number of books you can read based on your reading speed and the time available.

Identifies the interval (e.g., major third, perfect fifth) between two musical notes.

Calculates changes in player or team ratings based on the outcome of a match using the Elo rating system.

Calculates the relationship between pressure, volume, and temperature of a gas using the combined gas law: (P1 * V1) / T1 = (P2 * V2) / T2. This calculator allows you to solve for any one of these variables, given the others.

Calculates Grade Point Average based on grades and credit hours.