Donation Amount

Select the amount you would like to donate to Karen Spaar's 50 mi challenge.

$35

$70

$120

$265

$520

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Donation Calculator

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

$