Money tools

Calculate the tip and total for any bill, with quick percentage presets and an even per-person split.

Estimate your monthly mortgage payment from price, down payment, rate, and term — including property tax, insurance, HOA, and PMI.

Work out the monthly payment for any fixed-rate loan, or flip it around and find the biggest loan a monthly budget can support.

Project savings or investment growth with compound interest and monthly contributions, including a year-by-year balance table.

Solve any discount from the two numbers you know — percent off, amount off, or final price — and stack a second coupon on top.

Add sales tax to a pre-tax price, or work backwards from a tax-inclusive total to find the base price and the tax paid.

Price out a recipe from package prices: each ingredient's real cost for the amount used, the recipe total, and cost per serving.

Estimate what a drive costs from distance, fuel economy, and gas price — in mpg or L/100km — with round-trip and cost-splitting options.

Calculate what an EV charging session costs from battery size, charge range, and electricity price — with charger losses and cost per 100 mi/km.

Estimate Amazon FBA referral and fulfillment fees on a sale, then see your payout, per-unit profit, and margin.

Add up Etsy's listing, transaction, payment processing, and optional Offsite Ads fees to see your real payout and profit on a sale.

Estimate eBay's final value fee and per-order charge on a sale, including shipping, and see your payout, profit, and margin.

See what PayPal keeps from a goods & services payment (3.49% + $0.49 standard) and what lands in your account.

Calculate Stripe's 2.9% + $0.30 card fee on a payment and see exactly what reaches your balance, with editable rates.

Work out Shopify Payments processing fees on an order — or third-party gateway surcharges — and your per-order profit.

Estimate the Airbnb host service fee on a booking subtotal and see your payout after cleaning and other costs.

Estimate YouTube ad earnings from views using your RPM, or model it from CPM, monetized-view rate, and the 55% creator share.

See what Patreon's platform fee and payment processing take from your monthly pledge income, and what you actually keep.

Calculate Fiverr's 20% seller commission on any order value and see your take-home pay, profit, and effective hourly rate basis.

Apply Upwork's flat 10% freelancer service fee to a contract or milestone and see what you actually earn.

Calculate Amazon KDP royalties: 70% or 35% eBook plans with delivery costs, or 60% print minus printing cost, per unit and in total.

Estimate TikTok Shop's referral fee and optional affiliate commission on an order, and see your payout and profit.

Calculate Square's processing fee on a payment — online, in-person, or keyed-in rates — and the net that hits your account.

Work out Poshmark's cut — 20% on sales of $15+ or a flat $2.95 under $15 — and your earnings and profit on a listing.

Estimate Depop payment processing (and selling fees where they still apply) to see your payout and profit on a sale.

Estimate Mercari's selling fee and payment processing on a sale, then see your payout and profit after item and shipping costs.

Calculate StockX's seller transaction fee (by seller level) and payment processing to see your payout and profit on a sale.

Estimate monthly Twitch sub income from your Tier 1/2/3 counts, editable sub prices, and your revenue split.

Convert bits cheered on Twitch into your payout at the standard one cent per bit, with the rate editable.

See what Gumroad's flat 10% fee plus card processing leaves you from a digital product sale.

Estimate Kickstarter's 5% platform fee and payment processing on funds raised, and what's left to fulfill your project.

Calculate print-on-demand profit with Printify: retail price minus production cost and your sales channel's fees.

Work out your Redbubble artist margin — retail price minus base price — and the effect of account-tier fees.

Calculate Spring (Teespring) merch profit: your listing price minus the base product cost, per item sold.

Apply Amazon Handmade's 15% referral fee (with its $1 minimum) to a sale and see your payout, profit, and margin.

Estimate Grailed's 9% commission plus payment processing on a menswear sale and see your payout and profit.

Calculate Reverb's 5% selling fee and payment processing on a music-gear sale, and your payout after shipping costs.

Apply Discogs' 9% sales fee — with its $0.10 minimum and $150 cap — plus payment processing to see your payout on records.

Estimate Whatnot's 8% commission and payment processing on a live-stream sale, and your payout and profit per item.

See what Ko-fi's 5% fee (on shop and commission sales) plus payment processing leaves you — donations stay fee-free.

Estimate Fourthwall's fee on digital products and memberships plus payment processing, or model physical merch margins.