Try the Volatility Calculator Widget
Free for any site, including commercial ones. Keep the small credit line at the bottom of the widget so readers can find the full version. Nothing is stored about the people who use it. See the disclaimer.
How to add it to your site
- Copy the code Use the copy button in the Embed code box so nothing is lost to line wrapping. It is a single iframe tag and it does not need anything else.
- Open the page you want it on In WordPress add a Custom HTML block, in Wix use the Embed HTML element, in Squarespace use a Code block, and on a hand-built site paste it straight into your HTML.
- Paste and publish The widget appears immediately. If you see an empty space instead, your editor has stripped the iframe tag, which the HTML embed guide explains how to work around.
- Adjust the look if you want to Add the parameters in the table below to the iframe URL to change the theme, the accent colour or the height. Nothing needs to be configured on our side.
Customisation options
| Parameter | Values | What it does |
|---|---|---|
theme | auto, light, dark | Default follows the reader's own system setting, so the widget looks right on a dark site and a light one without you choosing. |
accent | Six hex digits, e.g. accent=1A56DB | Recolours the header bar and the primary button to match your brand. |
header | 1 or 0 | Set to 0 to hide the title bar when your page already has a heading above the widget. |
breakdown | 1 or 0 | Set to 0 to hide the calculation breakdown for a more compact block. |
corners | 1 or 0 | Set to 0 for square corners if your design has no rounding anywhere else. |
width | full | Removes the 520px maximum so the widget stretches to its container. |
Parameters are added to the iframe URL as a normal query string, for example
/embed/volatility-calculator.html?theme=dark&accent=1A56DB&header=0. The
widget builder lets you set all of them visually and hands you the finished code.
Why embed the Volatility Calculator
Volatility is quoted as an annual percentage and experienced as daily moves, and the widget bridges the two. It takes a set of returns and returns the standard deviation, then scales it to daily, monthly and annual volatility. Options content, position sizing lessons and market commentary pages all have a use for it.
What the widget calculates
A volatility calculator measures how much an instrument's price has actually moved over a series of periods, expressed as the standard deviation of returns, then scaled to an annualised figure for easy comparison.
Paste in a series of closing prices in order, and the calculator works out the period-by-period returns, the standard deviation of those returns, and the annualised volatility based on how many periods make up a year for your data.
The embedded version keeps the inputs and the result. The full Volatility Calculator on TradeAnswers adds worked examples, the method behind the numbers and a long FAQ.
Who this widget suits
Forex education sites
Drop it into the lesson it belongs to so readers can test their own pairs and sizes.
Finance blogs and newsletters
A working tool in a post gives readers a reason to return to that page.
Expat, travel and import sites
Rand-aware currency tools are hard to find; this one treats ZAR pairs as ordinary pairs.
Related widgets
- Forward Rate Calculator WidgetForward Rate Calculator
- Interest Rate Differential Calculator WidgetInterest Rate Differential Calculator
- Pip Value Calculator WidgetPip Value Calculator
- Margin Calculator WidgetMargin Calculator
The full library of free trading widgets has more than a hundred tools, and the widget builder lets you preview and configure any of them before you copy the code.