Discounts & Promotions
Calculate final prices, stacked discounts, coupon savings and buy-one-get-one value without double-counting promotional claims.
Compare discounts, unit prices, coupons, cashback, loyalty points, BOGO offers, bulk buying, subscriptions, shared bills, groceries, returns and shrinkflation with 16 transparent tools.

Calculate a sale discount amount and final price from an original price and percentage discount.
Calculate the effective discount and final price after up to three sequential percentage discounts.
Compare two products with different package prices and quantities using a consistent price per unit.
Compare the cost of buying a required quantity in regular packages versus a bulk package.
Calculate an eligible fixed or percentage coupon, capped savings and final merchandise price.
Calculate cashback earned and effective net purchase cost from eligible spending and reward rate.
Calculate cents-per-point redemption value and compare it with a user-entered benchmark.
Calculate effective unit price and savings for buy-X-get-Y offers with a percentage discount on the qualifying free items.
Calculate price-match savings, an optional beat percentage and final matched price.
Calculate expected cost per use after purchase price, ownership costs and estimated resale value.
Calculate total and effective monthly subscription cost including introductory pricing, regular pricing, fees and annual price growth.
Compare paying shipping with adding an eligible item to reach a free-shipping threshold.
Calculate tip, total bill and per-person share with optional unequal payer weights.
Calculate a grocery basket subtotal from up to six quantity-and-price lines and compare it with a budget.
Calculate expected refund and unrecovered cost after return shipping, restocking fees and nonrefundable charges.
Calculate unit-price inflation when a product’s package size and price both change.
This professional collection turns user-entered prices, quantities, offers, fees, budgets and reward terms into transparent arithmetic. Every page identifies inputs, units, equations, limitations, supporting results, authoritative references and dynamic calculation steps. No result silently depends on a retailer feed or stored account.
Calculate final prices, stacked discounts, coupon savings and buy-one-get-one value without double-counting promotional claims.
Compare package value, bulk purchases, price matches, cost per use and quantity changes on a consistent basis.
Review cashback, loyalty points, subscriptions, free-shipping thresholds, shared bills, grocery baskets and return costs.