Estimate your monthly eBay income by entering your average sale price, volume, and costs.
Example: 100 sales/month at $46 average = $4,600 gross. After ~$640 fees,
This tool is most useful during planning and review cycles: setting targets, evaluating performance, or comparing options. Standardised metrics make comparisons across periods or business units reliable.
A common mistake is comparing metrics that use different definitions — gross margin versus net margin, revenue versus profit, customer count versus paying customer count. Always confirm the definition of each input before comparing results across periods or sources.
A startup founder uses the calculator to determine break-even point: fixed monthly costs £12,000, variable cost per unit £18, selling price £42. Break-even is 500 units per month — a concrete sales target that the team can evaluate against pipeline and capacity.
Part-time sellers average $500–$2,000/month. Full-time power sellers often earn $3,000–