Support Sport-Calculator.com
Help us keep this tool free and growing. As a thank you, supporters get access to exclusive features that make file conversion even more powerful.
You can become a supporter directly when using our tools — just look for the upgrade prompts.
Not ready to support yet? No problem!
Sport-Calculator.com is free to use. You can convert files one at a time, use all converter types, and access basic features without signing up.
Continue using free tools →What Supporters Get
| Feature | Free | Supporter |
|---|---|---|
| File conversions | Limited | Unlimited |
| File size limit | Standard | Up to 1 GB |
| Bulk converting | — | Up to 100 files |
| Conversion speed | Standard | 5x faster |
| Ads | Yes | No ads |
Supporter Benefits
Frequently Asked Questions
Why should I support Sport-Calculator.com?
Sport-Calculator.com is an independent project that takes significant time and resources to maintain. Your support helps us keep the tool free for everyone while developing new features.
What payment methods do you accept?
We accept all major credit cards through Stripe, including Visa, Mastercard, and American Express. Your payment information is securely handled by Stripe.
How does the Day Pass work?
The Day Pass gives you full access to all Supporter features for 24 hours from the time of purchase. It's perfect for one-time projects or trying out the full experience.
What is bulk converting?
Bulk converting allows you to convert multiple files at once (up to 100 files) instead of one at a time. This saves significant time when working with multiple workout files.
What does Lifetime access mean?
The Lifetime plan is a single one-time payment that gives you permanent Supporter access — no recurring charges, ever. You get all Supporter features for as long as Sport-Calculator.com exists.