The Most Accurate Fee Calculator for Every Platform
Fee Calculator Pro gives online sellers, freelancers, gig workers, and small business owners instant, accurate fee breakdowns across every major platform. Whether you sell on eBay, accept payments through PayPal or Stripe, drive for DoorDash, or register a vehicle at the DMV, knowing your exact fees upfront is the difference between profit and loss.
Every calculator on this site is reviewed and updated whenever platforms change their fee structures. We track fee changes across 30+ platforms so you never calculate with outdated rates.
Why Accurate Fee Calculation Matters
Platform fees are rarely straightforward. eBay charges a final value fee plus a per-order charge plus optional store subscription fees. PayPal fees vary by payment type, country, and whether you use standard or custom pricing. Amazon FBA fees depend on product size, weight, storage duration, and referral category. A single miscalculation can silently erase your profit margin across hundreds of transactions.
Our calculators process all of these variables simultaneously, giving you a single net profit number you can trust before you list, price, or accept a payment.
Updated Daily
Fee rates are monitored and updated within 24 hours of any platform announcement. Always calculate with the current rate.
30+ Calculators
From eBay and Etsy to DMV registration and USCIS immigration fees, all in one place with no sign-up required.
100% Free
Every calculator is completely free. No premium tiers, no hidden charges, no account needed. Just accurate results instantly.
Mobile Friendly
Calculate fees on any device, anywhere. Our tools are optimised for phone, tablet, and desktop use.
Calculators for Every Type of Fee
Fee Calculator Pro covers five major categories, each with its own dedicated guide and individual calculators:
- Payment Processing: PayPal, Stripe, Square, Venmo, Cash App, and Coinbase fee calculators.
- Online Marketplaces: eBay, Amazon FBA, Etsy, Mercari, Depop, Reverb, Copart, and GunBroker.
- Government & State Tax: DMV, USCIS, Boston, Florida vehicle, Illinois, Oregon refund, and more.
- Real Estate Transfer Tax: Michigan, Iowa, New York estate tax, and UK Land Registry calculators.
- Gig Economy Tax: DoorDash and Amazon Flex tax calculators for independent contractors.
Frequently Asked Questions
How does Fee Calculator Pro keep fee rates accurate?
Our team monitors official platform fee pages, developer documentation, and seller community announcements for every platform we cover. When a fee change is announced or detected, we update the calculator within 24 hours. Each calculator page displays the date it was last verified.
Are all calculators on this site completely free?
Yes. Every calculator on Fee Calculator Pro is 100% free with no registration, subscription, or usage limit. We are supported by display advertising, not by charging users.
What is a final value fee and how is it calculated?
A final value fee is a percentage of the total sale amount (including shipping) that eBay charges when your item sells. For most categories it is 13.25%–15.3% of the sale price, plus a flat per-order fee of $0.30–$0.40. Our eBay fee calculator computes both components automatically.
Can I use these calculators for business tax planning?
Our calculators are tools for estimating platform fees and tax obligations. They are not a substitute for professional tax advice. For business tax planning, we recommend consulting a licensed CPA or tax professional who specialises in your industry.
Which payment processor has the lowest fees?
For standard card transactions, Stripe and Square both charge 2.9% + $0.30 per transaction. PayPal charges 3.49% + $0.49 for goods and services payments. For high-volume sellers, Stripe's custom pricing can reduce rates significantly. Use our payment processing comparison guide to see a full fee table.
Which online marketplace has the lowest selling fees?
Mercari charges a flat 10% selling fee with no listing fees, making it one of the lowest-cost platforms for casual sellers. eBay's fees range from 3% to 15.3% depending on category. Amazon FBA fees are the most complex, involving referral fees, fulfillment fees, and storage fees. See our complete marketplace fee comparison for a side-by-side breakdown.