AHA! SHOPPING TOOLS

Shopping price comparison

Compare a larger pack with a discounted smaller one. Enter prices, pack sizes and discounts to see the cash you will pay and the price for the same quantity.

Default numbers are examples. Enter the actual prices yourself and use the same currency for every offer.

OFFER 1

Large pack

Offer name (optional)Price for the whole pack (USD)Before coupons. Enter shipping separately below.Amount per itemUnitItems in the pack, including free itemsFor six 500ml bottles, use 500ml and a pack count of 6. For a buy-one-get-one offer, use 2.

Coupons, shipping & rewards

Coupon typeShipping charged (USD)Other fees / sales tax (USD)Enter any separately charged amountExpected reward value (USD)Enter the value you expect to earn and actually use.

OFFER 2

Small pack

Coupons, shipping & rewards

Coupon typeShipping charged (USD)Other fees / sales tax (USD)Enter any separately charged amountExpected reward value (USD)Enter the value you expect to earn and actually use.

COMPARE ON THE SAME BASIS

Which offer really costs less?

Offers are ranked by unit price, not the total purchase amount. Future rewards do not reduce today's cash payment.

per 100g price comparison

Large pack

Lowest unit price

$1.00per 100g

Pack price: $12.00
Coupon discount: −$0.00
Shipping: +$0.00
Other fees / tax: +$0.00
Cash payment: $12.00
Expected rewards: $0.00
After-rewards estimate: $12.00
Total quantity: 1,200 g

Small pack

$1.20per 100g

Pack price: $3.00
Coupon discount: −$0.00
Shipping: +$0.00
Other fees / tax: +$0.00
Cash payment: $3.00
Expected rewards: $0.00
After-rewards estimate: $3.00
Total quantity: 250 g

$0.20 more per unit · 20%

Discounts are rounded to the currency's minor unit. Ranking uses unrounded unit prices, even when displayed values look equal.

Everything is calculated in your browser. Inputs are not sent to our server; prices, exchange rates and coupon conditions are not fetched automatically.

MAKE A FAIR COMPARISON

Four things to check before buying

Compare the same quantity

A 1.2kg bag and a 250g pack have different total prices. Convert both to a price per 100g to compare fairly. Liquids use 100ml and countable products use one item. Grams and kilograms can be converted, as can litres and millilitres. Weight and volume stay separate because they cannot be converted without knowing density.

Enter the price of the whole pack

For six 500ml bottles, enter 500ml per item, a count of 6, and the price for all six bottles. A buy-one-get-one offer has a count of 2 when both products have the same size. If a free item is smaller, add the actual quantities and enter them as one bundle: a 500ml bottle plus a 250ml free bottle becomes 750ml with a count of 1.

Include coupons and delivery

Cash payment is the pack price minus eligible coupon discounts, plus shipping and any separately charged fees or sales tax. Check percentage-discount caps and use the store's order if two coupons can be combined. The calculator does not decide coupon eligibility, minimum order amounts or free-shipping thresholds. Enter the conditions that actually apply at checkout.

Rewards are separate from cash paid

Rewards earned later do not reduce the amount charged today. The tool shows cash payment and a separate after-rewards estimate, which assumes you can use the full reward value. Check expiry dates and redemption rules. A lower unit price can still mean a larger purchase, and waste can cancel out a bulk-buying saving. Choose the quantity you need before comparing the two measures.

Common questions

What if shipping covers several products?

Each offer represents buying that product or bundle. If one shipping charge covers several products, enter only the portion allocated to this offer or compare equivalent whole baskets. Charging the full shipping fee to every product would overstate the cost.

Does changing currency convert prices?

No currency conversion is performed. Select a display currency and enter all prices in that currency. Supported decimal places follow the currency. For international comparisons, first account for exchange rates and payment fees, then enter equivalent amounts in one currency.

Is the lowest-price offer a recommendation?

The lowest unit price is an arithmetic result based on your entries. Quality, delivery time, storage space and actual consumption are not included. Example numbers are not live prices. Check discounts and additional charges at checkout before choosing a product.

Which offer really costs less?

per 100g price comparison

Large pack

Small pack

Four things to check before buying

Compare the same quantity

Enter the price of the whole pack

Include coupons and delivery

Rewards are separate from cash paid

Common questions

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