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eBay Sales Forecast Calculator

Estimate your projected eBay revenue, fees, profit and margin based on expected sales volume, average selling price and costs.

Your Details

Overview

This eBay Sales Forecast Calculator helps you estimate revenue, fees and profit from expected sales volume. Enter your projected number of items sold, average sale price, eBay fee rate, item cost, shipping cost and fixed costs to see whether your forecast looks profitable.

How it works

The calculator multiplies your expected units sold by your average sale price to estimate gross revenue. It then estimates eBay fees using the fee percentage you enter, adds your item and shipping costs, and subtracts those costs plus fixed costs from revenue to estimate net profit. Profit margin is calculated by dividing net profit by gross revenue.

How to use this calculator

  1. 1Enter the number of items you expect to sell in the period.
  2. 2Add your average sale price per item.
  3. 3Enter your estimated eBay fee percentage.
  4. 4Fill in your average item cost and shipping cost per sale.
  5. 5Add any fixed monthly costs such as subscriptions or software.
  6. 6Review the projected revenue, fees, profit and margin.

Example Calculation

Expected units sold

100

Average sale price

$35

eBay fee rate

13%

Cost per item

$15

Shipping cost per item

$5

Fixed monthly costs

$100

Projected revenue

$3,500.00

If you expect to sell 100 items at an average price of $35, projected revenue is about $3500, estimated eBay fees are about $463.75, and projected profit is about $1436.25 before taxes.

Frequently asked questions

What does this calculator estimate?

It estimates your projected eBay revenue, selling fees, profit per item, total profit and profit margin based on your forecast inputs.

Does this include taxes or VAT?

No. This version focuses on sales revenue, fees and basic costs. You should account for taxes separately if they apply to your business.

What fee should I enter for eBay fees?

Use your typical combined selling fee rate based on your category and selling setup. If your fees vary, use a realistic average.

Can I use this for any sales period?

Yes. You can use it for a week, month, quarter or any period, as long as your sales and fixed cost inputs all match the same timeframe.

Does profit per item include fixed costs?

No. Profit per item shows the contribution from each sale before fixed monthly costs are spread across all orders.

Why is my profit margin low even with strong sales?

A high sales total does not always mean strong profitability. Fees, product costs, shipping and fixed expenses can reduce your margin quickly.

Explore Related Calculators

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Assumptions and warnings

Assumptions

  • All items are assumed to sell at the average sale price entered.
  • The fee rate is treated as a single average percentage across all sales.
  • Product and shipping costs are assumed to be consistent per item.
  • Results are estimates and do not include refunds, returns, taxes or unexpected charges unless built into your inputs.

Warnings

  • This calculator provides an estimate only and is not financial or business advice.
  • Actual eBay fees, shipping costs and sales performance may differ from your forecast.