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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Pressure Calculator</title>
<link rel="icon" href="favicon.ico" type="image/x-icon">
<link rel="stylesheet" href="assets/css/bootstrap.css">
<link rel="stylesheet" href="assets/css/style.css" type="text/css">
<link rel="stylesheet" href="assets/css/fontawesome.css">
<link rel="stylesheet" href="assets/fontawesome/css/brands.css">
<link rel="stylesheet" href="assets/fontawesome/css/solid.css">
</head>
<body class="bg-pcode">
<header>
<div class="header"></div>
</header>
<section class="container">
<div class="jumbotron jumbotron-fluid mt-1 mb-1 shadow p-3 jumbo-bg">
<div class="container">
<h1 class="display-4 text-center text-wrap">Pressure Calculator</h1>
<p class="lead">Calculate the pressure exerted by an object given the force and area.</p>
<p>Start by adding two variables you know to calculate the third.</p>
</div>
</div>
</section>
<section class="container border border-info bg_cont mb-1">
<div class="row">
<h3 class="d-flex justify-content-center">Equation</h3>
</div>
\begin{equation*} \Large P = \frac{F}{A} \end{equation*}
</section>
<form id="SubmissionForm" novalidate>
<!-- Equation Selection -->
<section class="container border border-primary bg_cont mb-1">
<h4>Select the things you know:
<a tabindex="0" class="btn btn-link" role="button" data-bs-toggle="popover" data-bs-trigger="focus" data-bs-title="Select known variables" data-bs-content="By getting you to select the known variables you can start to become more familiar with the equations. You can select any two variables to calculate the third.">
<small><i class="far fa-question-circle fa"></i></small>
</a>
</h4>
<p>Please note that this calculator converts all inputs into SI or metric units (Nm<sup>-2</sup>). The pressure exerted by an object is given by the equation \(P = \frac{F}{A}\), where \(P\) is the pressure in, \(F\) is the force exerted, and
\(A\) is the area of the object. Select the two variables that you know and calculate for the third. You can change your selection later if you want. This will help you become familiar with the processes of calculating pressure equations.</p>
<p>For more information about pressure and the equation \(P = \frac{F}{A}\), please visit our <a href="https://#" target="_blank" rel="noopener">pressure equation</a> page.
</p>
<!-- Check Boxes -->
<div class="row align-items-center">
<div class="col-3 text-center">
<p class="fs-5 mb-0"><i class="fas text-warning fa-check-square me-2"></i>Select the variables you know:</p>
</div>
<div class="col-9">
<div class="ideal-check border p-3">
<div class="form-check form-switch border-bottom">
<input class="form-check-input" type="checkbox" value="pressure" id="pressure" name="pressure">
<label class="form-check-label" for="pressure">
Pressure (P)
</label>
</div>
<div class="form-check form-switch border-bottom">
<input class="form-check-input" type="checkbox" value="force" id="force" name="force">
<label class="form-check-label" for="force">
Force (F)
</label>
</div>
<div class="form-check form-switch border-bottom">
<input class="form-check-input" type="checkbox" value="area" id="area" name="area">
<label class="form-check-label" for="area">
Area (A)
</label>
</div>
</div>
</div>
</div>
</section>
<section class="container border border-primary bg_cont">
<div class="row d-flex justify-content-center">
<div class="card shadow-sm p-3 mt-1 mb-1" style="width: 32rem;">
<i class="fa-solid fa-angles-down fa-10x rounded mx-auto d-block mt-1 shadow-sm p-3"></i>
<div class="card-body">
<h4 class="text-center">Pressure<br>
</h4>
<!-- Input 1 Pressure -->
<div class="form-group">
<div class="row">
<div class="col-7">
<label for="inputPressure" class="form-label d-none d-sm-inline">Pressure (P)</label>
<a tabindex="0" class="btn btn-link" data-bs-toggle="popover" data-bs-trigger="focus"
data-bs-title="Pressure (Nm<sup>-2</sup>, Pa, psi, atm):"
data-bs-content="Enter the pressure exerted by the object in units of newtons per
square meter (Nm<sup>-2</sup>), pascals (Pa), pounds per square inch (psi), or
atmospheres (atm). Example: 100 N/m<sup>2</sup> or 1 atm. Note: If you are
solving for force or area, you should input measurements in compatible units.">
<i class="far fa-question-circle fa"></i>
</a>
<input type="number" name="inputPressure" id="inputPressure"
class="reset_form formCheck maxAllow form-control input-rounded-start"
aria-label="Enter the pressure exerted by the object in units of newtons per
square meter (Nm<sup>-2</sup>), pascals (Pa), pounds per square inch (psi), or
atmospheres (atm)." data-input="pressure"
value="" min="-1.00e12" max="1.00e12" step="any" autocomplete="off" disabled
placeholder="Pressure (P)">
</div>
<div class="col-5">
<label for="unitsPressure" class="form-label">Units</label>
<select class="form-select form-control" name="unitsPressure" id="unitsPressure"
data-input="pressure" disabled>
<option value="N/m^2" selected>Nm⁻²</option>
<option value="atm">atm</option>
<option value="Pa">Pa</option>
<option value="bar">bar</option>
<option value="psi">psi</option>
<option value="mmHg">mmHg</option>
<option value="torr">Torr</option>
<option value="hpa">hPa</option>
<option value="kpa">kPa</option>
<option value="mpa">MPa</option>
<option value="mbar">mbar</option>
</select>
</div>
</div>
</div>
<!-- Input 2 - Force -->
<div class="form-group">
<div class="row">
<div class="col-7">
<label for="inputForce" class="form-label d-none d-sm-inline">Force (F)</label>
<a tabindex="0" class="btn btn-link" data-bs-toggle="popover" data-bs-trigger="focus"
data-bs-title="Force (N, kN, MN, lbf, ozf):"
data-bs-content="Enter the force acting on an object in units of newtons (N),
kilonewtons (kN), meganewtons (MN), pounds-force (lbf), or ounces-force (ozf).
Example: 500 N or 0.5 kN. Note: If you are solving for pressure or area, you
should input measurements in compatible units."">
<i class="far fa-question-circle fa"></i>
</a>
<input type="number" name="inputForce" id="inputForce"
class="reset_form formCheck maxAllow form-control input-rounded-start"
aria-label="Enter the mass of the object. Check your units." data-input="force"
value="" min="-3.00e8" max="3.00e8" step="any" autocomplete="off"
disabled placeholder="Force (F)">
</div>
<div class="col-5">
<label for="unitsForce" class="form-label">Units</label>
<select class="form-select form-control" name="unitsForce" id="unitsForce"
data-input="mass" disabled>
<option value="kg" selected>kg</option>
<option value="gm">g</option>
<option value="mg">mg</option>
<option value="μg">μg</option>
<option value="lb">lb</option>
<option value="oz">oz</option>
<option value="toz">t oz</option>
</select>
</div>
</div>
</div>
<!-- Input 3 - Area -->
<div class="form-group">
<div class="row">
<div class="col-7">
<label for="inputArea" class="form-label d-none d-sm-inline">Area (A)</label>
<a tabindex="0" class="btn btn-link" data-bs-toggle="popover" data-bs-trigger="focus"
data-bs-title="Area (m<sup>2</sup>, cm<sup>2</sup>, in<sup>2</sup>,
ft<sup>2</sup>):"
data-bs-content="Enter the area in units of square meters (m<sup>2</sup>), square
centimeters (cm<sup>2</sup>), square inches (in<sup>2</sup>), or square feet
(ft<sup>2</sup>). Example: 10 m<sup>2</sup> or 100 cm<sup>2</sup>. Note: If you
are solving for force or pressure, you should input measurements in compatible
units.">
<i class="far fa-question-circle fa"></i>
</a>
<input type="number" name="inputArea" id="inputArea"
class="reset_form formCheck maxAllow form-control input-rounded-start"
aria-label="input value for Specific Heat Capacity in joules per kilogram per
kelvin or similar."
data-input="area" value="" min="0" max="1.00e+30" step="any" autocomplete="off"
disabled placeholder="Area (A)">
</div>
<div class="col-5">
<label for="unitsArea" class="form-label">Units</label>
<select class="form-select form-control" name="unitsArea"
id="unitsArea" data-input="area" disabled>
<option value="m2" selected>m²</option>
<option value="cm2">cm²</option>
<option value="km2">km²</option>
<option value="mm2">mm²</option>
<option value="um2">µm²</option>
<option value="mi2">mi²</option>
<option value="yd2">yd²</option>
<option value="ft2">ft²</option>
<option value="in2">in²</option>
<option value="ac">acres</option>
<option value="ha">hectares</option>
</select>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="col text-center">
<button type="reset" class="btn-sm btn-outline-danger btn mb-2" id="resetButton1">Reset</button>
<a tabindex="0" class="btn btn-link" role="button" data-bs-toggle="popover" data-bs-trigger="focus"
data-bs-title="Reset Form" data-bs-content="Reset the form to add new variables to calculate.">
<i class="far fa-question-circle fa mb-2"></i>
</a>
<button type="button" class="btn-sm btn btn-outline-success mb-2" id="submitButton"
disabled>Calculate</button>
<a tabindex="0" class="btn btn-link" role="button" data-bs-toggle="popover" data-bs-trigger="focus"
data-bs-title="Calculate"
data-bs-content="Once you have added three variables submit the calculation for evaluation.">
<i class="far fa-question-circle fa mb-2"></i>
</a>
<div id="error"></div>
</div>
<br>
</section>
<!-- TABLE ONE - RESULTS -->
<section id="results_table_1" class="container border border-success mt-1 mb-1 bg_cont">
<h5>Table 1: Results in SI units</h5>
<table class="table table-sm">
<thead>
<tr>
<th scope="col" class="w50">Variable</th>
<th scope="col" class="w50">Amount</th>
</tr>
</thead>
<tbody>
<tr>
<td>Pressure (P)</td>
<td id="pressureOutput">Nm⁻²</td>
</tr>
<tr>
<td>Force (F)</td>
<td id="forceOutput">N</td>
</tr>
<tr>
<td>Area (A)</td>
<td id="areaOutput">m²</td>
</tr>
</tbody>
</table>
<h6 class="equation_color">Equation Used:</h6>
<p id="equation"></p>
<p id="substitutedNumbers"></p>
<button type="reset" class="btn-sm btn-outline-danger btn mb-2" id="resetButton2">Reset</button>
<a tabindex="0" class="btn btn-link" role="button" data-bs-toggle="popover" data-bs-trigger="focus" data-bs-title="Reset Form" data-bs-content="Reset the form to add new variables to calculate. The answer will remain here until you calculate a new set of variables.">
<i class="far fa-question-circle fa mb-2"></i>
</a>
<br>
<p><em>Table 1 provides the SI unit for each variable. You can change the output accordingly and see the
common unit conversions in Table 2.</em></p>
</section>
</form>
<!-- Table 2 Results Table -->
<section class="container border border-success mt-1 mb-2 bg_cont">
<h5>Table 2: Results with common units displayed</h5>
<table class="table table-sm">
<thead>
<tr class="t_line">
<th scope="col" class="w50">Variable</th>
<th scope="col" class="w50">Amount</th>
</tr>
</thead>
<tbody>
<tr>
<td>Pressure (P)</td>
<td id="p1x">Nm⁻²</td>
</tr>
<tr>
<td></td>
<td id="p2x">Pa</td>
</tr>
<tr>
<td></td>
<td id="p3x">kPa</td>
</tr>
<tr>
<td></td>
<td id="p4x">MPa</td>
</tr>
<tr>
<td></td>
<td id="p5x">GPa</td>
</tr>
<tr class="t_line">
<td></td>
<td id="p6x">bar</td>
</tr>
<tr>
<td></td>
<td id="p7x">mbar</td>
</tr>
<tr>
<td></td>
<td id="p8x">hPa</td>
</tr>
<tr>
<td></td>
<td id="p9x">mmHg</td>
</tr>
<tr>
<td></td>
<td id="p10x">inHg</td>
</tr>
<tr class="t_line">
<td></td>
<td id="p11x">psi</td>
</tr>
<tr>
<td>Force (F)</td>
<td id="f1x">N</td>
</tr>
<tr>
<td></td>
<td id="f2x">kN</td>
</tr>
<tr>
<td></td>
<td id="f3x">MN</td>
</tr>
<tr>
<td></td>
<td id="f4x">dyn</td>
</tr>
<tr>
<td></td>
<td id="f5x">lbf</td>
</tr>
<tr>
<td></td>
<td id="f6x">ozf</td>
</tr>
<tr>
<td></td>
<td id="f7x">lb</td>
</tr>
<tr class="t_line">
<td></td>
<td id="f8x">kgf</td>
</tr>
<tr>
<td>Area (A)</td>
<td id="a1x">m<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a2x">mm<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a3x">cm<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a4x">km<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a5x">μm<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a6x">mi<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a7x">yd<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a8x">ft<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a9x">in<sup>2</sup></td>
</tr>
<tr>
<td></td>
<td id="a10x">acres</td>
</tr>
<tr class="t_line">
<td></td>
<td id="a11x">hectares</td>
</tr>
</tbody>
</table>
<p><em>Table 2 shows the results of all the calculations and various units available with all conversions
completed.</em>
</p>
</section>
</div>
<div id="alert-container">
<div id="alert-box" role="alert" aria-label="Alert: Invalid input.">
<span id="alert-message">Invalid input.</span>
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