Free eCommerce Calculator Hub
Calculate profit, ROAS, and growth targets before you spend budget.
Access 30 calculators across 7 core eCommerce categories. Use them to pressure-test pricing, ad efficiency, margin risk, refund loss, and lifecycle payback.
Quick Start
Shopify Profit Calculator
Calculate net Shopify profit with revenue, product cost, ad spend, shipping, and payment fee inputs.
Quick Start
Currency Profit Converter
Convert profit from currency A to currency B with custom FX rate.
Quick Start
Break-even ROAS Calculator
Estimate your break-even ROAS and maximum ad spend per order after product, shipping, and fee costs.
Quick Start
Discount Impact Calculator
Compare per-unit profit before and after discounts with optional payment fee impact.
Search Calculators
Search by calculator name, metric, or keyword to jump directly to the right tool.
Start by your exact decision
Full calculator indexWhat ROAS target keeps my campaigns at break-even?
Will discounts still leave enough contribution margin?
How much loss comes from refunds and payment fee leakage?
Is my acquisition payback healthy for scaling spend?
How should I normalize profit across currencies or channels?
Popular entry calculators
Explore full libraryProfit & Margin
Shopify Profit Calculator
Calculate net Shopify profit with revenue, product cost, ad spend, shipping, and payment fee inputs.
Finance & Utilities
Currency Profit Converter
Convert profit from currency A to currency B with custom FX rate.
Profit & Margin
Discount Impact Calculator
Compare per-unit profit before and after discounts with optional payment fee impact.
Ads & Profitability
Facebook Ads ROAS Calculator
Calculate ROAS from attributed revenue and ad spend.
Profit & Margin
Refund Impact Calculator
Estimate net refund loss when payment fees may not be refunded and other sunk costs already happened.
Lifecycle & Growth
CAC Calculator
Calculate customer acquisition cost from sales and marketing spend.
Explore by category
Browse all calculatorsProfit & Margin
10 toolsAds & Profitability
7 toolsAmazon
4 toolsCore eCommerce Metrics
2 toolsLifecycle & Growth
2 toolsOperations & Fulfillment
3 toolsFinance & Utilities
2 toolsFAQ
Which calculator should I start with for Shopify profitability?
Start with the Shopify Profit Calculator, then check break-even ROAS to set channel-level ad spend limits.
Can I estimate discount and refund impact before launching campaigns?
Yes. Use the Discount Impact Calculator and Refund Impact Calculator together to test contribution margin under promotion and return scenarios.
Are these calculators useful beyond Shopify stores?
Yes. Most formulas are channel-agnostic and work for general eCommerce operations when inputs are mapped consistently.
How should I use results to reduce bounce and improve decisions?
Use one calculator as an entry point, then move to related calculators in the same workflow so assumptions stay consistent across pricing, media, and margin planning.