NumLuma›Calculators›Ecommerce Profit & Growth Calculators

Connect revenue to profit

Ecommerce Profit & Growth Calculators

Ecommerce decisions become clearer when pricing, acquisition and customer value are viewed together. Use this toolkit to move from unit economics to funnel performance without mixing definitions between metrics.

NumLuma Journey

A useful order, not just a list.

Start with the first question, then move through the connected calculations. You can jump in anywhere, but the sequence keeps the task coherent.

Step 1 of 6

01 Start here Profit Margin

Calculate profit and margin percentage.

02 Next calculation Markup

Calculate markup from cost and price.

03 Next calculation Gross Profit

Find gross profit and gross margin.

04 Next calculation Net Margin

Calculate net profit as a percentage of revenue.

05 Next calculation Contribution Margin

Find contribution margin per unit and percent.

06 Next calculation Product Pricing

Price a product for a target margin.

Start calculating

Everything you need for this job.

Each tool is free, works without an account and links to its formula, assumptions and related calculators.

Browse all calculators →

BZ Business

Profit Margin Calculator

Calculate profit and margin percentage.

NL / BZ Open

BZ Business

Markup Calculator

Calculate markup from cost and price.

NL / BZ Open

BZ Business

Gross Profit Calculator

Find gross profit and gross margin.

NL / BZ Open

BZ Business

Net Profit Margin Calculator

Calculate net profit as a percentage of revenue.

NL / BZ Open

BZ Business

Contribution Margin Calculator

Find contribution margin per unit and percent.

NL / BZ Open

BZ Business

Product Pricing Calculator

Price a product for a target margin.

NL / BZ Open

BZ Business

Average Order Value Calculator

Find average revenue per order.

NL / BZ Open

BZ Business

Conversion Rate Calculator

Find conversion percentage.

NL / BZ Open

BZ Business

Customer Acquisition Cost Calculator

Calculate customer acquisition cost.

NL / BZ Open

BZ Business

Customer Lifetime Value Calculator

Estimate gross-profit customer lifetime value.

NL / BZ Open

BZ Business

Sales Growth Calculator

Measure sales increase or decrease.

NL / BZ Open

BZ Business

Revenue Goal Calculator

Estimate revenue needed for a target profit.

NL / BZ Open

BZ Business

ROAS Calculator

Calculate return on ad spend.

NL / BZ Open

Before you calculate

Useful context, not filler.

NumLuma groups tools around real tasks so you can move from one calculation to the next without starting your research over.

What should an ecommerce store calculate first?

Start with product economics: selling price, cost, gross profit and margin. Then connect marketing metrics such as CAC or ROAS to customer value and conversion rate.

Why can revenue growth and profit growth move differently?

Revenue can increase while profit falls if product costs, discounts, acquisition costs, refunds or overhead rise faster than sales.