Privacy Policy

Effective Date: August 20, 2026

This Privacy Policy explains how Lot Size Calculator, available at lot-size-calculator.com, handles information when you use our website and trading calculators.

1. Information We Collect

You can use our calculators without creating an account, signing in, or providing your name or email address.

The website may collect limited technical information automatically, such as:

• browser type
• device type
• operating system
• approximate location based on IP address
• pages visited
• referring website
• basic usage and performance data
• IP address where required for security, hosting, or analytics purposes

We do not require users to submit personal financial account details in order to use the calculators.

2. Calculator Inputs

Information entered into the calculators, such as:

• account balance
• risk percentage
• stop-loss distance
• lot size
• entry price
• exit price
• currency pair

is used only to perform the requested calculation.

Where possible, calculations are performed directly in your browser.

If a currency conversion is required, the website may send only the necessary currency codes, such as JPY and USD, to our server-side exchange-rate service. We do not need to send your account balance, risk percentage, stop loss, or other trade values to the exchange-rate provider for that purpose.

3. Exchange-Rate Data

Some calculator features may use third-party market-data providers, including Twelve Data, to obtain currency exchange rates.

Exchange-rate requests are processed through our server infrastructure and may be cached to reduce unnecessary third-party requests.

Third-party providers may process technical request information according to their own privacy policies.

4. Hosting and Infrastructure

The website may use services provided by Cloudflare for hosting, content delivery, security, serverless functions, caching, and related infrastructure.

Cloudflare may process information such as IP addresses, request metadata, security information, and technical logs as necessary to provide its services.

5. Cookies

The website may use essential cookies or similar technologies where necessary for:

• security
• website functionality
• user preferences
• performance

We may introduce analytics or advertising technologies in the future.

If non-essential cookies are added where consent is legally required, we will provide an appropriate consent mechanism.

6. Analytics

We may use privacy-focused analytics or other analytics services to understand how visitors use the website.

Analytics may collect information such as:

• pages viewed
• session duration
• device type
• browser
• approximate geographic region
• referral source

We do not intend to use calculator input values as analytics data.

7. Advertising

The website may display advertisements in the future, including advertisements provided by third-party advertising networks such as Google AdSense.

Advertising providers may use cookies, device identifiers, or similar technologies to:

• deliver advertisements
• measure ad performance
• prevent fraud
• personalize advertisements where legally permitted

If advertising technologies requiring consent are introduced, we will implement appropriate disclosures and consent controls where required.

8. Third-Party Links

Our website may contain links to third-party websites or services.

We are not responsible for the privacy practices, content, security, or policies of external websites.

You should review the privacy policy of any third-party website you visit.

9. Data Retention

We retain technical or operational information only for as long as reasonably necessary for:

• security
• debugging
• website operation
• fraud prevention
• legal compliance

Cached exchange-rate data may be temporarily stored to improve performance and reduce external API usage.

10. Data Security

We use reasonable technical and organizational measures to protect the website and information processed through it.

However, no internet-based service can guarantee absolute security.

11. Children's Privacy

This website is not directed toward children under the age required to consent to online services in their jurisdiction.

We do not knowingly collect personal information from children.

12. Your Privacy Rights

Depending on your location, you may have rights regarding your personal information, including the right to:

• request access
• request correction
• request deletion
• object to certain processing
• restrict certain processing
• withdraw consent where processing is based on consent

Because the calculators can generally be used without creating an account, we may hold little or no information that can directly identify you.

13. International Users

Our website may be accessed from different countries.

Information processed by our hosting, security, analytics, advertising, or market-data providers may be processed in countries other than your own.

14. Changes to This Privacy Policy

We may update this Privacy Policy when our website, services, providers, or legal obligations change.

The latest version will always be published on this page with an updated effective date.

15. Contact

If you have questions about this Privacy Policy, contact us through the contact method provided on lot-size-calculator.com.