Donation Amount

Select the amount you would like to donate to Karol Markward's 50 mi challenge.

$35

$70

$120

$265

$500

OtherSurprise Karol

Donation Calculator

Calculate your donation based on an amount per-mile Karol Markward has committed to ride this September. Your total donation will be the amount you select multiplied by Karol Markward'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:

$