Calculators
Create and discover interactive calculators for various scenarios and measurements.
VO2 Max Calculator for Runners
Estimates VO2 max specifically tailored for runners, often using race times.
Hiking Calculator
Estimates hiking time or calories burned based on distance, elevation gain, and pace.
Completing the Square Calculator
Converts a quadratic expression to vertex form by completing the square.
Centor Score Calculator (Modified/McIsaac)
This calculator helps predict the likelihood of bacterial pharyngitis (strep throat) based on clinical signs. The Centor score, also known as the McIsaac score, is a clinical decision rule used to determine the need for throat swab testing or antibiotic treatment.
Cardiac Output Calculator
Estimates the volume of blood pumped by the heart per minute (often requires clinical inputs).
Maintenance Calorie Calculator
Estimates the daily calories needed to maintain current weight based on the Mifflin-St Jeor equation and activity level.
Credit Score Calculator
Estimates your credit score based on factors like payment history, amounts owed, length of credit history, credit mix, and new credit.
Cost of Having a Baby Calculator
This calculator estimates the costs associated with having a baby, including prenatal care, delivery, and initial baby expenses.
Age Calculator
Calculates your age based on a birth date and a reference date.
Roll Length Calculator
Calculates the length of a rolled-up rectangular sheet based on its diameter, core diameter, and number of rotations.