Traffic is expensive; conversion improvements are close to free. The conversion rate calculator establishes the baseline, orders divided by visitors, where most e-commerce stores land between 2% and 3%. Small moves matter more than they look: at 50,000 monthly visitors and a $60 average order, half a percentage point of conversion is $15,000 a month.
The leak-finding tools price what you are losing right now. The cart abandonment cost calculator puts dollars on the roughly 70% of carts that never check out, and the bounce-rate tool does the same for visitors who leave without browsing. Recovering even a tenth of abandoned carts through email is usually a store’s cheapest revenue.
Which is why the email tools sit in this category. The email ROI calculator measures the channel’s return, and the open-rate, click-rate, and revenue-per-email calculators grade each send. When you start testing fixes, the A/B test significance calculator tells you whether a lift is real or noise, before you roll out a change on a coin flip.
Frequently asked questions
What is a good e-commerce conversion rate?
Across industries, e-commerce sites convert around 2–3% of visitors; under 1% signals a traffic-quality or site problem, and 4% or more is strong for most catalogs. Context moves the number a lot: returning visitors, email traffic, and branded search convert several times better than cold social traffic, and mobile typically converts about half as well as desktop.
Why do shoppers abandon their carts?
Long-running checkout research puts average cart abandonment near 70%. The top fixable causes are surprise costs at checkout, forced account creation, and long or confusing checkout flows. Some abandonment is window-shopping and never recoverable, which is why recovery emails, which typically win back 5–10% of abandoned carts, outperform trying to redesign your way to zero.
Is email marketing still worth it for e-commerce?
Yes, it is usually the highest-ROI channel a store runs, with commonly cited returns of $30–40 per dollar spent. Even conservative math works: a 20,000-subscriber list emailed weekly at $0.10 of revenue per send is over $8,000 a month from a channel with almost no marginal cost. Abandoned-cart and welcome flows earn several times more per email than campaigns.
How long should I run an A/B test?
Until you reach the sample size significance requires, and at least one full business cycle, usually two weeks, so weekday and weekend behavior are both represented. Detecting a 10% lift on a 2.5% baseline conversion rate takes roughly 50,000 visitors per variant. Stopping the moment a test looks positive is the most common way stores ship changes that do nothing.
More calculator collections
- Advertising & ROAS calculators — Break-even and target math for paid traffic: ROAS, ACOS, budgets and click economics.
- Pricing & Margins calculators — Margins, markups, discounts and break-even points — the math that sets every price.
- Marketplace & Payment Fees calculators — What Amazon, Etsy, eBay, Shopify and payment processors really take from each sale.
- Unit Economics calculators — CAC, LTV, AOV and contribution — whether each customer earns more than they cost.
- Shipping & Landed Cost calculators — Landed cost, duty and freight — the true per-unit cost of getting goods to the door.
- Inventory calculators — Reorder points, EOQ and turnover — holding enough stock without drowning in it.
- Store Finance calculators — Cash cycles, runway and growth — the money mechanics behind the storefront.