calculators/index.html at master · guyru/calculators · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Calculators - Navy & Army Body Fat, Concept2 Pace, 1RM, Tap Tempo & Digital Compass Tools</title>
    <meta name="description" content="Free online calculators: Navy & Army Body Fat calculators, Concept2 watts-to-pace converter, One Rep Max (1RM) calculator, Tap Tempo BPM calculator, and Digital Compass for mobile devices. Responsive and accurate tools.">
    <meta name="keywords" content="navy body fat calculator, army body fat calculator, concept2 pace calculator, 1rm calculator, one rep max, epley formula, tap tempo bpm, digital compass, watts to pace, rowing calculator, body fat percentage, circumference method, abdominal measurement, beats per minute, mobile compass">
    <meta name="author" content="guyru">

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    <meta property="og:title" content="Calculators - Navy & Army Body Fat, Concept2 Pace, 1RM, Tap Tempo & Digital Compass Tools">
    <meta property="og:description" content="Free online calculators: Navy & Army Body Fat calculators, Concept2 watts-to-pace converter, One Rep Max (1RM) calculator, Tap Tempo BPM calculator, and Digital Compass for mobile devices.">

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    <meta property="twitter:title" content="Calculators - Navy & Army Body Fat, Concept2 Pace, 1RM, Tap Tempo & Digital Compass Tools">
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    <link rel="stylesheet" href="shared.css">
</head>
<body>
    <div class="calculator-container index">
        <div class="header">
            <h1>Calculators</h1>
            <div class="intro-text">
                Calculators that I find useful.
            </div>
        </div>

        <div class="calculator-grid">
            <a href="navy-body-fat-calculator.html" class="calculator-card"
               aria-label="Navigate to Navy Body Fat Calculator">
                <h2>Navy Body Fat Calculator</h2>
                <p>Figure out your body fat percentage using the Navy's circumference measurements method.</p>
            </a>

            <a href="army-body-fat-calculator.html" class="calculator-card"
               aria-label="Navigate to Army Body Fat Calculator">
                <h2>Army Body Fat Calculator</h2>
                <p>Calculate body fat percentage using the Army's single-site abdominal circumference method.</p>
            </a>

            <a href="concept2-watts-pace-calculator.html" class="calculator-card"
               aria-label="Navigate to Concept2 Watts to Pace Calculator">
                <h2>Concept2 Watts ↔ Pace Calculator</h2>
                <p>Convert between watts and pace for Concept2 rowing machines. Goes both ways in real time.</p>
            </a>

            <a href="tap-tempo-calculator.html" class="calculator-card"
               aria-label="Navigate to Tap Tempo BPM Calculator">
                <h2>Tap Tempo BPM Calculator</h2>
                <p>Detect beats per minute by tapping to the rhythm. Configurable sample size and timeout for accurate tempo measurement.</p>
            </a>

            <a href="digital-compass.html" class="calculator-card"
               aria-label="Navigate to Digital Compass">
                <h2>Digital Compass</h2>
                <p>Real-time compass using device orientation sensors. Works on mobile devices with magnetometer for navigation and heading display.</p>
            </a>

            <a href="rowing-training-bands-calculator.html" class="calculator-card"
               aria-label="Navigate to Rowing Training Bands Calculator">
                <h2>Rowing Training Bands Calculator</h2>
                <p>Calculate personalized training zones based on your max heart rate, resting heart rate, and 2000m erg performance.</p>
            </a>

            <a href="one-rep-max-calculator.html" class="calculator-card"
               aria-label="Navigate to One Rep Max Calculator">
                <h2>One Rep Max (1RM) Calculator</h2>
                <p>Calculate your estimated one-rep max using Epley's formula. Includes a complete rep-max table for training planning.</p>
            </a>
        </div>

        <div class="github-links">
            <a href="https://github.com/guyru/calculators" target="_blank" rel="noopener noreferrer">View Source</a>
            <a href="https://github.com/guyru/calculators/issues" target="_blank" rel="noopener noreferrer">Report Issue</a>
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