Tools
Pricing, discount, and deal calculators
Fast, privacy-friendly calculators for shoppers, resellers, and small ecommerce teams. Each page includes a short guide and the math behind the results.
Discount & savings
Discount Calculator — final price & savingsFree discount calculator: enter original price and discount percent to see the new price and how much you save. Built for shoppers comparing deals.Percentage Off Calculator — amount off & final priceCalculate how much X% off represents in dollars and what you pay after the discount. Works for any currency; enter numbers only.Price Drop Calculator — change in money and percentMeasure how much a price dropped from an old value to a new value. Outputs absolute savings and the percentage decrease.Price Difference Calculator — compare two pricesCompare two prices from different stores or listings. See the absolute difference and how large the gap is relative to the lower price.Savings Calculator — total savings with quantityCalculate total savings when buying discounted items, including multiple units. See per-unit savings and the full basket impact.Sale Price Calculator — what you pay on saleSimple sale price calculator: enter regular price and sale percent to get the promotional price. Optimized for quick “what’s the sale price?” searches.Original Price From Discount Calculator — reverse percent offFind the original price before a discount when you only know the final price and the discount percentage. Solves reverse percentage-off problems.Final Price After Discount Calculator — one or more discountsCompute the final price after up to three sequential percentage discounts. Useful for promotions that apply multiple percent steps.Stacked Discount Calculator — percent after percentCalculate the effective price after stacking multiple percentage discounts (for example 20% then 10%). See equivalent single discount.Tax and Discount Calculator — US-style checkout mathApply a percent discount first, then add sales tax. Helpful for estimating US checkout totals where tax applies after promotions.
Pricing & comparison
Price Comparison Calculator — find the cheapest optionCompare up to five product prices at once. Highlights the lowest price and shows how much more expensive each other option is.Competitor Price Difference CalculatorMeasure the gap between your price and a competitor’s price in dollars and percent. Useful for resellers and small ecommerce teams.Price Matching Calculator — cut needed to matchSee how much you must reduce your price to match a competitor, and optionally what margin remains after matching given your cost.Undercut Pricing Calculator — beat a price by a target gapCalculate the price you need to undercut a competitor by a fixed amount or to hit a target discount versus their price.Bulk Discount Calculator — volume tier pricingEstimate total cost for multiple units with a percent bulk discount. Good for B2B quotes and wholesale-style tier thinking.Bundle Savings Calculator — bundle vs buying separatelyCompare the sum of individual item prices to a bundle price. See whether the bundle is truly cheaper and by how much.Shipping Cost Impact Calculator — landed priceAdd shipping to a product price to compare true landed cost across retailers with different delivery fees.Tax + Shipping + Discount Calculator — full checkout estimateEstimate a full checkout: apply a percent discount, add shipping, then apply tax percent on the taxable subtotal. Planning tool for complex carts.
Margin, markup & profit
Markup Calculator — selling price from costCalculate selling price from purchase cost and desired markup percent. Useful for merchants setting list prices from landed cost.Margin Calculator — margin % and profit dollarsCompute profit dollars and margin percent from cost and selling price. Margin is expressed as percent of selling price.Profit Calculator — simple profit per unitSubtract cost from selling price to get profit per unit. A fast utility for quick listing checks.Resale Profit Calculator — fees optionalEstimate resale profit: selling price minus purchase cost minus optional fees. Built for marketplace and local resale scenarios.ROI Calculator for Flipping ProductsCompute return on investment for a buy-and-resell flip: profit divided by cash invested (purchase + fees). Output is ROI percent.Break Even Price Calculator — minimum sell priceFind the minimum selling price to cover unit cost plus per-unit fees and shipping allocation. Quick break-even guardrail for sellers.Reseller Margin Calculator — after fees & shippingEstimate reseller margin after selling price, cost, marketplace fee percent, and shipping cost. Outputs profit and margin on revenue.Marketplace Fee Calculator — net after percent feesCalculate marketplace fees as a percent of sale and show net proceeds. General-purpose fee estimator for sellers.eBay Fee Calculator — simplified net proceedsEstimate eBay proceeds using a combined percent fee and optional fixed fee per order. Useful for quick listing checks (approximation).Flipping Profit Calculator — is the flip worth it?Compare buy price, sell price, and costs to see profit and ROI for a flip. Great for electronics, bikes, watches, and used goods.
Deal & shopping utilities
Is This a Good Deal Calculator — vs typical priceCompare a current price to an estimated normal price. See percent savings and a simple verdict label for quick gut-checks.Best Deal Calculator — compare multiple offersCompare up to three offers using price, shipping, and an optional percent discount. Picks the lowest total and shows deltas.Cost Per Use Calculator — price divided by usesDivide an item’s price by expected uses to compare durability purchases and subscription-like goods on a per-use basis.Cost Per Month Calculator — amortize a purchaseSpread a purchase price across months of ownership to compare alternatives with different lifetimes or financing assumptions.Cost Per Day Calculator — daily ownership costDivide price by days of ownership for a quick daily cost figure. Useful for subscriptions and daily-carry items.Subscription Savings Calculator — lump sum vs recurringCompare total paid over a horizon for a one-time purchase versus a recurring subscription price. Highlights which is cheaper overall.Price Per Unit Calculator — $ per kg, liter, pieceConvert package price into price per unit (count, kg, liter, etc.) for apples-to-apples comparisons in grocery and retail.Unit Price Comparison Calculator — two packagesCompare two package sizes by converting both to the same unit measure. Shows which option is cheaper per unit and by how much.Bulk Price Calculator — large pack vs small packCompare per-unit cost for a smaller pack versus a larger pack. Helps evaluate wholesale-style sizing online.Local Pickup vs Shipping Calculator — travel cost includedCompare shipped total versus driving to pickup: add mileage cost and time value to the pickup path, then compare to delivered price.
Competitor & ecommerce
Competitor Monitoring ROI Calculator — time saved vs costEstimate ROI of monitoring competitor prices: value of hours saved plus optional uplift from better repricing decisions, minus monitoring cost.Price Change Impact Calculator — revenue & margin effectModel how a price change affects revenue and gross profit for a given sales volume, holding unit cost constant.Inventory Value Calculator — units × costCalculate inventory value from on-hand quantity and average unit cost. Supports up to three SKUs for quick estimates.Restock Cost Calculator — order-up totalEstimate how much cash a restock order requires for up to three products: units to buy times unit wholesale cost.Competitor Price Gap Calculator — you vs market referenceCompare your price to a market reference price. Outputs signed gap and percent above/below the reference.MAP Price Checker Calculator — minimum advertised priceCheck whether a listed price is below a MAP threshold and by how much. For reseller compliance workflows (informational).
Marketplace & listings
Used Item Deal Calculator — vs new reference priceEvaluate a used offer against a new reference price. Shows savings and implied depreciation versus new.Used vs New Price Calculator — side-by-side savingsCompare used and new prices directly. Outputs absolute savings and percent saved versus buying new.Depreciation Calculator — exponential decay modelEstimate remaining value after annual depreciation percent over multiple years. Useful for cars, bikes, electronics, and gear.Listing Price Change Calculator — delta for marketplace adsMeasure how much a listing price changed between two observations in dollars and percent. Built for listing-watch workflows.Price Negotiation Calculator — counter-offer from target discountTurn a listing price and desired percent discount into a concrete counter-offer amount and savings versus list.Resale Break Even Calculator — minimum viable sell priceCompute minimum sell price to break even after purchase cost, fees, and shipping. Helps avoid selling into a loss by accident.
General utilities
Percentage Change Calculator — between two valuesCalculate percent change from an old value to a new value. Works for prices, metrics, and any two positive numbers.Percentage Increase / Decrease CalculatorSee whether a value went up or down in percent terms from a starting price to an ending price. Companion to price tracking dashboards.Currency Conversion Calculator — manual exchange rateConvert an amount using an exchange rate you provide (amount in home currency per 1 unit of foreign currency). No live FX feed; privacy friendly.VAT Calculator — add or remove VATSwitch between VAT-inclusive and VAT-exclusive amounts using a VAT rate percent. Useful for EU shopping and invoicing estimates.Sales Tax Calculator — US-style percent add-onAdd US sales tax percent to a taxable amount to estimate total due. Simple support calculator for American shoppers.