What does price elasticity of demand measure?

Price elasticity measures how responsive customer demand is to price changes. It tells you the percentage change in quantity demanded for a 1% change in price.

What is elastic vs inelastic demand?

Elastic demand (|E| > 1): Quantity changes more than price—customers are price-sensitive. Inelastic demand (|E| < 1): Quantity changes less than price—customers are less price-sensitive.

Why is price elasticity usually negative?

Because price and demand typically move in opposite directions (Law of Demand). When price increases, quantity demanded decreases, resulting in a negative elasticity value.

What is the midpoint method?

The midpoint method calculates percentage changes using the average of initial and final values as the base. This gives the same elasticity value regardless of which direction the price moves.

How do I use elasticity for pricing decisions?

If demand is elastic (|E| > 1), lowering prices increases revenue. If inelastic (|E| < 1), raising prices increases revenue. Unit elastic (|E| = 1) means price changes don't affect revenue.

What factors affect price elasticity?

Availability of substitutes, necessity vs luxury, time period, brand loyalty, and portion of budget. Products with more substitutes and less necessity tend to be more elastic.

How accurate is historical elasticity data?

Historical data provides estimates but elasticity can change with market conditions, competition, and customer preferences. Use as a guide, not absolute truth, and update regularly.

What is cross-price elasticity?

Cross-price elasticity measures how demand for one product changes when the price of another product changes. Positive values indicate substitutes; negative values indicate complements.

How does elasticity vary by customer segment?

Different customer segments have different price sensitivities. Price-sensitive customers have elastic demand; loyal or premium customers have inelastic demand. Segment-specific pricing can optimize revenue.

Can I calculate elasticity for B2B products?

Yes, though B2B elasticity is often lower (more inelastic) due to switching costs, contracts, and relationships. The calculation method is the same—track price and volume changes over time.

Price Elasticity Calculator

Calculate price elasticity of demand using the midpoint method. Understand how your customers respond to price changes.

Enter Your Data

Enter price and quantity data to calculate elasticity

Industry Benchmarks: Price Elasticity

Elasticity is typically negative (price up → demand down). More negative values mean higher price sensitivity. Necessities tend to be inelastic; luxuries are elastic.

Industry	Low	Average	High
Luxury Goods	-2.5%	-2%	-1.5%
Consumer Electronics	-2%	-1.5%	-1.2%
Groceries (Staples)	-0.5%	-0.3%	-0.2%
Gasoline	-0.4%	-0.2%	-0.1%
Restaurant Meals	-2.5%	-1.8%	-1.5%
B2B Industrial	-1.5%	-0.9%	-0.5%

How to Use the Price Elasticity Calculator

Step-by-Step Instructions

Enter the original price (P1) and original quantity sold (Q1)
Enter the new price (P2) and new quantity sold (Q2)
Click Calculate to see the price elasticity coefficient
Interpret: |E| > 1 is elastic, |E| < 1 is inelastic, |E| = 1 is unit elastic

Formulas Used

Price Elasticity (Midpoint Method)

E = ((Q2-Q1)/((Q2+Q1)/2)) / ((P2-P1)/((P2+P1)/2))

The midpoint method gives the same elasticity regardless of direction of price change.

Percentage Change Method

E = (% Change in Quantity) / (% Change in Price)

Simplified version showing elasticity as ratio of percentage changes.

Frequently Asked Questions: Price Elasticity Calculator

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