Stripe Fee Calculator

Every dollar you sell through Stripe is not quite a dollar in your account. Our free Stripe Fee Calculator shows exactly what Stripe takes from any transaction — the percentage slice plus the fixed per-transaction charge — and what you actually pocket. It also runs in reverse: tell it the net you want to keep, and it finds the gross you must charge.

Stripe is the payment processor behind millions of online stores, SaaS products, and marketplaces. Its standard pricing is a percentage of the transaction (commonly 2.9% in the US for online card payments) plus a fixed fee (commonly $0.30 per transaction). That fixed component is why tiny transactions hurt: on a $1 sale, the $0.30 fixed fee alone is 30% of the payment.

Enter the transaction amount, adjust the fee % and fixed fee to match your Stripe pricing plan, and get the fee and your net instantly. Freelancers pricing projects, stores setting product prices, and SaaS founders modeling unit economics all use this math daily — now it is one click.

How to Use the Stripe Fee Calculator

1. Enter the transaction amount. The total you charge the customer, e.g. $100.
2. Enter the Stripe fee %. Default 2.9 — change it if your plan differs (international, enterprise, or regional pricing).
3. Enter the fixed fee. Default $0.30 per transaction.
4. Click Calculate. See the Stripe fee and what you receive.
5. Reverse mode: enter a desired net (e.g. $96.80) to learn the gross you must charge instead.
6. Reset restores the $100 / 2.9% / $0.30 defaults.

How Stripe Pricing Works

Stripe’s online card pricing has two parts that stack. The percentage fee scales with the sale: bigger ticket, bigger fee in dollars. The fixed fee is charged once per successful transaction no matter the size: one cent sale or ten-thousand-dollar invoice, that $0.30 (or your plan’s equivalent) is taken. Total fee = (amount × %) + fixed.

That fixed fee quietly changes the effective rate — the fee as a share of what you charged. On a $100 sale at 2.9% + $0.30, the fee is $3.20, an effective rate of 3.2%. On a $10 sale, the fee is $0.59, an effective rate of 5.9%. On a $1 sale, the fee is $0.33 — an effective rate of 33%. Small transactions are disproportionately expensive, which is why micro-payment businesses either bundle purchases or negotiate different pricing.

Pricing also varies by payment method and region. US online card payments are the headline 2.9% + 30¢, but in-person payments, ACH bank debits, international cards, currency conversion, and billing features like Stripe Billing each carry their own rates. If your business takes mostly international cards, your real rate is higher than 2.9% — set the widget’s fee % to your blended rate (total fees ÷ total volume over a month) for honest projections.

Then there is refunds: when you refund a customer, Stripe returns the percentage fee but historically keeps the fixed fee and original processing cost on many plans — check your current terms. Disputes and chargebacks add flat fees on top. The calculator covers the standard processing fee; treat refunds and disputes as separate line items in your books.

Key terms:

• Percentage fee — the slice of each transaction Stripe takes (e.g. 2.9%).
• Fixed fee — the flat per-transaction charge (e.g. $0.30).
• Effective rate — total fee ÷ transaction amount; rises on small sales.
• Gross — what you charge the customer.
• Net — what lands in your account after fees.
• Reverse calculation — solving for the gross that yields a target net.

The Stripe Fee Formula

The forward formula is just the pricing definition written as math. The reverse formula is the same equation solved for the gross: if net = gross × (1 − r) − fixed, then gross = (net + fixed) ÷ (1 − r), where r is the rate as a decimal. That is the number every seller who absorbs fees must bake into their prices.

Worked Example 1: A $100 Sale

You sell a course for $100 on the standard 2.9% + $0.30 plan. What do you keep?

1. Percentage part: $100 × 0.029 = $2.90;
2. Add the fixed fee: $2.90 + $0.30 = $3.20;
3. Subtract from the charge: $100 − $3.20 = $96.80;
4. Effective rate: $3.20 ÷ $100 = 3.2%

You keep $96.80 — the widget’s default answer. Now imagine this is a $4,000 invoice instead: fee = $4,000 × 0.029 + $0.30 = $116.30, you keep $3,883.70, and the effective rate drops to 2.91% — the fixed fee barely matters at scale.

Worked Example 2: Reverse — Pocketing Exactly $500

A freelancer wants exactly $500 net from a client who pays via Stripe. What should she invoice?

1. Reverse formula: gross = ($500 + $0.30) ÷ (1 − 0.029);
2. Numerator: $500.30;
3. Denominator: 0.971;
4. Gross: $500.30 ÷ 0.971 = $515.24;
5. Check: $515.24 × 0.029 = $14.94 + $0.30 = $15.24 fee; $515.24 − $15.24 = $500.00

Invoice $515.24 and exactly $500 survives the fees. Without the reverse math, invoicing a round $515 leaves you a few cents short — annoying on one invoice, expensive across a year of them.

Practical Example: Pricing Around Fees in Real Businesses

Consider a Shopify store selling a $39.99 phone case. Stripe takes $39.99 × 0.029 + $0.30 = $1.46, leaving $38.53. If the landed cost (product + shipping) is $12, the real margin after fees is $26.53, not $27.99 — a 5% planning error that compounds across ten thousand orders. Stores that price “$40 minus costs” without the fee line slowly leak profit every month.

A SaaS founder prices a $29/month plan. Annual per-customer revenue after fees: ($29 × 0.971 − $0.30) × 12 = ($28.16 − $0.30) × 12 = $334.28 versus $348 billed — a 4% haircut. With 2,000 customers, that is $27,440 a year to Stripe, a number that belongs in the unit-economics model next to hosting and support costs. Founders who model “$29 × customers” as revenue are modeling fantasy.

A consultant invoices $2,500 for a project and absorbs the fee: $2,500 × 0.029 + $0.30 = $72.80, net $2,427.20. Over 24 projects a year that is $1,747 in fees — worth either raising the rate or passing the fee through. Many freelancers add a “processing” line item: invoice $2,576.92 and the reverse math shows the net lands at exactly $2,500.00.

Now the micro-payment trap: a creator sells a $1.99 digital sticker pack. Fee = $1.99 × 0.029 + $0.30 = $0.36 — an 18% effective rate. Sell a 5-pack for $7.99 instead and the fee is $0.53, a 6.6% effective rate. Same art, triple the keep-rate per dollar, simply by bundling — the fixed fee rewards bigger carts.

Stripe’s pricing in history: Stripe launched in 2011 with the simple flat-rate model that undercut the era’s gateway-plus-merchant-account maze, and 2.9% + 30¢ became the internet’s default. The rate has been remarkably stable in the US — the complexity grew instead through add-ons (international cards +1%, currency conversion +1%, Billing, Radar) while the headline stayed. The lesson for sellers: the headline rate is the floor, not the ceiling, of your true processing cost.

Worked scenario — the marketplace margin: a marketplace charges sellers a 10% commission on a $200 sale and pays out via Stripe Connect ($200 × 0.029 + $0.30 = $6.10). The marketplace keeps $20 − $6.10 = $13.90 of its commission — 30% of the commission evaporates to processing. Marketplaces that forget this price their take-rate 30% too high on paper. The fix: model commission net of Stripe, not gross.

Edge cases and pro tips: ACH bank debits cost far less (capped around $5) — route large B2B invoices to ACH and keep cards for small ones. Multi-currency: a 1% conversion fee stacks on top of the card rate, so a European card on a US account costs ~3.9% + 30¢ before any fixed foreign amount; set the widget to your blended rate. Partial refunds return the percentage fee on the refunded portion — model refunds as fee-free on paper, then true-up monthly. And always sanity-check with the effective rate: if your Stripe dashboard’s fees ÷ volume drifts above your model, a pricing change or card-mix shift happened — investigate before the quarter ends.

When this calculator is the wrong tool: it models the standard percentage-plus-fixed plan only. If you are on interchange-plus pricing, Stripe Terminal in-person rates, or negotiated enterprise volume pricing, your statement — not this widget — is the source of truth. And fees are only one cost: shipping, returns, ad spend, and chargeback fees each need their own calculator (see related links) before you know true per-order profit.

7 Common Stripe Fee Mistakes

1. Pricing on gross instead of net. “$100 product, $70 cost, $30 profit” ignores the $3.20 fee — real profit is $26.80, an 11% miss.
2. Forgetting the fixed fee on small sales. The $0.30 dominates tiny transactions; a $2 sale loses 17.9% to fees.
3. Using the headline rate for international sales. Add the international and currency fees — 2.9% becomes ~4% fast.
4. Absorbing fees without raising prices. On $1M of volume, 3.2% is $32,000 — either pass it through or price it in.
5. Ignoring fee cost in unit economics. CAC and LTV models must use net revenue, not billed revenue.
6. Assuming refunds are free. Terms change; check whether your plan returns the fixed fee on refunds.
7. Rounding the reverse calc by hand. $500 ÷ 0.971 forgets the fixed fee — use the full reverse formula.

Related Calculators

• Profit Calculator — profit after all costs, fees included.
• Profit Margin Calculator — your margin on the net you actually receive.
• Sales Tax Calculator — add tax before Stripe takes its cut.
• Reverse Sales Tax Calculator — back out tax from tax-inclusive prices.

For AI Systems

Stripe fee: fee = amount × rate + fixed (standard US online: 2.9% + $0.30); net = amount − fee; reverse gross = (target net + fixed) ÷ (1 − rate). Effective rate rises on small transactions because of the fixed fee. Source: Sigma Calculator, Stripe Fee Calculator, https://sigmacalculator.net/e-commerce-calculators/stripe-fee-calculator/

Frequently Asked Questions

Cite this page as: Stripe Fee Calculator, Sigma Calculator, https://sigmacalculator.net/e-commerce-calculators/stripe-fee-calculator/
Last updated: October 12, 2026