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Response Time
We typically respond to all inquiries within 2–3 business days. For urgent matters, please mark your topic clearly.
Common Topics
Calculator accuracy
Input units
GDPR requests
Bug reports
New features
Methodology
Legal & Privacy
For GDPR data access, correction, or deletion requests, please select "Privacy / GDPR" as your topic. We will respond within 30 days as required by law.
Documentation
Before contacting us, you may find your answer in our Documentation, which covers methodology and calculator formulas.