Help keep Pattern Calculator free
Less calculating. More creating. Our calculators are free for everyone, with no account or paid membership required. Your optional support helps cover hosting, maintenance and improvements.
No paywall. No pressure. A contribution is always your choice. You get the same calculators whether you support us financially or not.
Two simple ways to help
Monthly support
A small monthly contribution helps with ongoing running costs. This is recurring support, not a subscription to use the calculators.
Your first payment is taken when you complete checkout, then repeats monthly until cancelled. To stop future payments, contact us using your checkout email. Read the support terms below.
One-time support
Prefer to contribute just once? Choose an amount that feels right. There is no renewal or ongoing commitment.
These buttons take you to Stripe to check the amount before paying. A custom contribution can be any amount from €1.
What your support helps fund
Keeping a free website running comes with costs: hosting, security, maintenance, testing and improvements to the calculators.
We are also preparing clearly labelled advertising to help cover those costs. Financial support is a separate, optional way to help; it does not remove advertising or unlock extra features.
Sharing helps too
Sharing our website with a friend or your craft group is another welcome way to help us. Thank you for being here.
Support & payment information
Contributions support Pattern Calculator, operated by Gouda Select. Payments are processed by Stripe. This is voluntary support for an independent commercial website, not a charitable donation or the purchase of calculator access.
One-time and monthly contributions
A one-time contribution is charged once. Monthly support is charged when checkout is completed and renews each month until cancelled. Check the amount, currency and frequency shown at checkout before confirming.
Cancellations and billing questions
For cancellation, mistaken payments or other billing questions, contact us and include your checkout email and payment reference. Never send full card details. Cancelling monthly support stops future renewals; it does not automatically reverse completed payments. Nothing here limits any rights that apply to you under applicable law.
Your privacy
Your card details are entered on Stripe’s checkout, not into the calculators. See our Privacy Policy for information about personal data, and our Terms & Disclaimer for use of the free tools.