Donation Amount

Select the amount you would like to donate to John Ackmann's 200 mi challenge.

$50

$100

$250

$500

$2,500

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Donation Calculator

Calculate your donation based on an amount per-mile John Ackmann has committed to ride this September. Your total donation will be the amount you select multiplied by John Ackmann's 200 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