Presto Rates support.
Experiencing a rate discrepancy or have an idea to improve our shipping calculator? We monitor carrier updates daily and respond directly to reseller feedback.
Inquiry form
Submit your carrier rate questions or feature suggestions. Our independent development team reviews every message to keep our math accurate and fast.
Common questions
Before sending an inquiry, check these quick resolutions regarding carrier rates, dimensions, and platform integrations.
Rate discrepancies
Supported carriers
Account requirements
Carriers update base rates seasonally. If you see a mismatch, ensure your package dimensions and residential delivery surcharges are toggled correctly.
We pull real-time rates for USPS, UPS, and FedEx. We are entirely independent and never prioritize one carrier over another for financial kickbacks.
Presto Rates is completely free. We do not require an account, signup, or email address to compare shipping costs and package dimensions.