Page Speed Drop Cost per Shopify Order Calculator
See what a slower Shopify store costs you: lost orders, lost revenue, lost gross profit, and the hidden cost per order of every extra second of load time.
Your store
Results (per month)
How the page speed cost per order is calculated
Slowdown = load time after − load time before. New conversion rate = old rate × (1 − loss per second × slowdown), floored at 0. Orders = sessions × conversion rate. Lost revenue = lost orders × AOV; lost gross profit = lost revenue × margin. Cost per order spreads that loss across the orders you still get, so you can compare it with your CPA or app costs.
Worked example (the defaults)
50,000 sessions at 2.5% and $80 AOV = 1,250 orders. A 1.5s slowdown at 7% per second cuts conversion by 10.5% to 2.2375%, or 1,118.75 orders. That is 131.25 lost orders, $10,500 lost revenue ($4,200 gross profit) a month — about $9.39 of revenue per remaining order and $126,000 a year.
FAQ
How much does each second of load time cost a Shopify store? Industry studies commonly cite 4–10% fewer conversions per extra second on mobile; 7% is a practical middle default. Use your own A/B or analytics data if you have it.
What causes Shopify speed drops? Usually new apps injecting scripts, unoptimized hero images, and heavy theme sections. Audit apps first.