Primary use case 1
Set a price from cost
Enter cost, extra costs, and a target margin to see the theoretical price and practical ending options side by side.
Margin & Markup Calculator (Cost ↔ Price)
Set a selling price from target gross margin, or reverse gross margin and markup from your current price. Extra costs, payment fees, ending optimization, and batch calculation are all handled in one page.
Instant calculation
Runs in your browser
Suggests price endings
Batch CSV/TSV support
Calculations run in your browser and are not sent to the server.
What This Page Is For
Primary use case 2
Check whether the current price makes sense
Reverse gross profit, gross margin, and markup from a selling price, then compare the result with your target.
Primary use case 3
Recalculate many products at once
Paste CSV or TSV data, review the preview, and export the result as CSV or TSV for spreadsheets.
How to Use It
- Choose one of the three modes: cost to price, price to margin, or batch calculation.
- Enter the cost, price, target margin, and extra costs that apply to your case.
- Adjust payment fees and decimal display in Advanced options if needed.
- Use the result summary, breakdown, formulas, and suggested endings to make a pricing decision immediately.
Sample Cases
Set a recommended price from cost
Example input: cost 1,200 / extra cost 230 / target margin 40%
Example output: theoretical price, gross profit, gross margin, markup, and ending suggestions such as 980, 990, and 999
Evaluate the current price
Example input: cost 600 / extra cost 50 / price 990
Example output: gross profit, gross margin, markup, and the gap from the target margin
Understand It Quickly
Gross margin
Gross margin shows how much gross profit remains relative to the selling price. Use it when you want to judge price quality from the selling-price side.
Gross margin = (price - cost - extra costs - price-based fee) / price
Markup
Markup shows how much profit is added relative to cost and fixed extra costs. Use it when you want to think from the cost base.
Markup = gross profit / (cost + extra costs + payment fixed fee)
Cost to price formula
When you derive a price from a target margin, extra costs and payment fees need to be included in the same equation. In practice, this difference directly affects the final selling price.
Recommended price = (cost + extra costs + payment fixed fee) / (1 - payment fee rate - target margin)
Glossary
Gross margin
The share of gross profit relative to the selling price. It tells you how much room remains after direct costs.
Markup
The share of gross profit relative to cost and fixed extra costs. It shows how much you added on top of the cost base.
Extra cost
Fixed per-sale costs such as packaging, shipping, and flat transaction fees.
Formulas
- Gross profit = price - (cost + extra costs + payment fixed fee + price-based fee)
- Gross margin = gross profit / price
- Markup = gross profit / (cost + extra costs + payment fixed fee)
- Recommended price = (cost + extra costs + payment fixed fee) / (1 - payment fee rate - target margin)
FAQ
How do I include fees?
Use the extra cost field for fixed costs, and enter percentage-based payment fees in Advanced options. You can also add a fixed payment fee separately.
Can I calculate a selling price from target margin?
Yes. In the Cost to Price tab, enter cost and target margin to get the theoretical selling price plus practical ending suggestions.
What about multiple products?
Paste CSV or TSV data into the Batch tab to calculate gross margin, markup, and recommended price for many products at once. Export the result as CSV or copy it as TSV.
Notes
- This tool is based on gross profit calculations. It may differ from accounting profit that includes SG&A, labor, advertising, taxes, and other overhead.
- Check your own rules for tax-inclusive pricing, VAT or sales tax, import duties, local pricing norms, and psychological pricing practices.
- For a real pricing decision, also review competitive conditions, return policies, campaign mechanics, and payment terms.