Donation Amount

Select the amount you would like to donate to Katherine Zacarias's 50 mi challenge.

$35

$70

$120

$265

$500

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Donation Calculator

Calculate your donation based on an amount per-mile Katherine Zacarias has committed to ride this September. Your total donation will be the amount you select multiplied by Katherine Zacarias's 50 mi challenge goal and will be charged up-front.

$0.30 cents/mi

$0.50 cents/mi

$0.80 cents/mi

$1/mi

$1.50/mi

$2/mi

Donation Total:

$