Cookie Policy
Last Updated: 20 January 2026
1. What Are Cookies?
Cookies are small text files that are placed on your device (computer, smartphone, or tablet) when you visit a website. They are widely used to make websites work more efficiently and provide information to website owners.
Cookies help us understand how you use our calculator, remember your preferences, and improve your experience.
2. Types of Cookies We Use
2.1 Essential Cookies
These cookies are necessary for the website to function properly. They enable core functionality such as security, network management, and accessibility.
| Cookie Name | Purpose | Duration |
|---|---|---|
| cookie-consent | Stores your cookie consent preferences | 12 months |
| theme | Remembers your dark/light mode preference | Persistent |
Note: Essential cookies do not require consent as they are necessary for the website to function.
2.2 Analytics Cookies
We use analytics cookies to understand how visitors interact with our website. This helps us improve the calculator and user experience.
| Cookie Name | Purpose | Duration |
|---|---|---|
| _ga | Google Analytics - distinguishes users | 2 years |
| _ga_* | Google Analytics - maintains session state | 2 years |
| _gid | Google Analytics - distinguishes users | 24 hours |
Your consent: Analytics cookies are only set if you accept optional cookies via our cookie banner.
2.3 Advertising Cookies
We use Google AdSense to display advertisements on our website. These cookies help show relevant ads and measure ad performance.
| Cookie Name | Purpose | Duration |
|---|---|---|
| IDE | Google DoubleClick - ad serving and targeting | 13 months |
| NID | Google - stores preferences and information | 6 months |
| __gads | Google AdSense - measures ad effectiveness | 13 months |
Your consent: Advertising cookies are only set if you accept optional cookies via our cookie banner.
2.4 Performance Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us know which pages are the most and least popular.
3. Third-Party Cookies
Some cookies are set by third-party services that appear on our pages:
- Google Analytics: Tracks and reports website traffic. See Google's Privacy Policy.
- Google AdSense: Serves personalised advertisements. See Google's Advertising Policy.
4. How to Manage Cookies
4.1 Cookie Banner
When you first visit our website, you'll see a cookie consent banner. You can choose to:
- Accept all cookies: Essential, analytics, and advertising cookies will be enabled
- Reject optional cookies: Only essential cookies will be enabled
- Manage preferences: View this cookie policy and make informed choices
4.2 Browser Settings
Most web browsers allow you to control cookies through their settings. You can:
- View cookies stored on your device
- Delete existing cookies
- Block cookies from being set
- Set preferences for specific websites
Note: Blocking all cookies may prevent the calculator from functioning properly.
4.3 Google Advertising Settings
You can opt out of personalised advertising by visiting Google Ads Settings.
4.4 Browser-Specific Instructions
- Chrome: Cookie settings in Chrome
- Firefox: Cookie settings in Firefox
- Safari: Cookie settings in Safari
- Edge: Cookie settings in Edge
5. Cookie Consent and Google Consent Mode v2
We implement Google Consent Mode v2 to ensure compliance with privacy regulations. This means:
- Analytics and advertising cookies are blocked until you give consent
- We respect your "Do Not Track" browser settings
- You can withdraw consent at any time by clearing your cookies or adjusting browser settings
- We only collect anonymised data when consent is denied
6. Updates to This Cookie Policy
We may update this cookie policy from time to time to reflect changes in our practices, technologies, or legal requirements. The "Last Updated" date at the top of this page indicates when the policy was last revised.
7. More Information
For more information about how we process your personal data, please see our Privacy Policy.
If you have questions about our use of cookies, please contact us using the details provided in the footer.