50% Off Calculator

50% off — the half-price benchmark

Half off is the discount everyone understands instantly. It's the threshold where shoppers stop calculating and start buying. BOGO ("buy one get one free") is mathematically identical to 50% off across two items.

The math is the simplest of any discount: divide by 2. The original price and the saving are identical. An $84 item saves $42 and costs $42. There's no other discount where the calculation is this fast.

At standard price points: $25 off $50, $50 off $100, $100 off $200, $250 off $500. The $500 example is where 50% gets dangerous — saving $250 feels significant enough to override the question of whether you actually needed the item.

This discount dominates two specific windows: post-Christmas clearance (Dec 26 through mid-January) and end-of-season transitions in late February and late August.

The biggest gotcha at 50% off is fake-markup pricing. Furniture, mattresses, and jewelry are the worst categories. If a sofa has been "50% off" for six straight months, that's not a discount, that's the price.

Compared to 40%, the dollar difference is exactly 25% more savings. Compared to 60%, you're leaving 20% more savings on the table — but at 60%, inventory is usually picked over and selection is limited. For high-demand items, 50% is often the practical sweet spot: deep enough to feel like a real deal, early enough that the size and color you want still exist.

How to calculate 50% off

Multiply the original price by 0.50 (which is 1 − 50/100):

Sale Price = Original × 0.50

For example, 50% off $200: $200 × 0.50 = $100.00. You save $100.00.

50% off quick-reference table

Original price	Sale price (50% off)	You save
$10.00	$5.00	$5.00
$20.00	$10.00	$10.00
$25.00	$12.50	$12.50
$50.00	$25.00	$25.00
$75.00	$37.50	$37.50
$100.00	$50.00	$50.00
$150.00	$75.00	$75.00
$200.00	$100.00	$100.00
$250.00	$125.00	$125.00
$500.00	$250.00	$250.00