Calculators

Create and discover interactive calculators for various scenarios and measurements.

VO2 Max Calculator for Runners

Sports

Estimates VO2 max specifically tailored for runners, often using race times.

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Hiking Calculator

Sports

Estimates hiking time or calories burned based on distance, elevation gain, and pace.

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Completing the Square Calculator

Math

Converts a quadratic expression to vertex form by completing the square.

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Centor Score Calculator (Modified/McIsaac)

Health

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.

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Cardiac Output Calculator

Health

Estimates the volume of blood pumped by the heart per minute (often requires clinical inputs).

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Maintenance Calorie Calculator

Health

Estimates the daily calories needed to maintain current weight based on the Mifflin-St Jeor equation and activity level.

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Credit Score Calculator

Finance

Estimates your credit score based on factors like payment history, amounts owed, length of credit history, credit mix, and new credit.

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Cost of Having a Baby Calculator

Everyday life

This calculator estimates the costs associated with having a baby, including prenatal care, delivery, and initial baby expenses.

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Age Calculator

Everyday life

Calculates your age based on a birth date and a reference date.

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Roll Length Calculator

Construction

Calculates the length of a rolled-up rectangular sheet based on its diameter, core diameter, and number of rotations.

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