Price Increase Calculator
Calculate the percentage increase from an old price to a new price and estimate the yearly cost.
Price Increase
+22.9%
+$0.80 per purchase
Monthly Impact
$3.47
Annual Impact
$41.60
5-Year Impact
$208.00
These results are estimates for informational purposes only. Actual costs may vary.
What this calculator tells you
From groceries to monthly services, small price increases can add up over time. Enter the old price and new price to calculate the exact percentage increase and see what that change costs you over a full year.
Issues With calculators are deterministic tools, not AI guesses. Your result is calculated from the numbers you enter using the formula shown below, and the inputs stay in your browser.
How this calculator works
Enter the old price, the new price, and how often you buy the item. The calculator shows the exact percentage increase and — more importantly — what that increase costs you monthly, annually, and over five years at your purchasing frequency.
Works for groceries, subscriptions, gas, utilities, or any recurring purchase. The annual and five-year views are particularly useful for turning a "it's only $0.80 more" feeling into a concrete dollar figure.
The formula
Dollar Increase = New Price − Old Price
% Increase = (Dollar Increase ÷ Old Price) × 100
Annual Impact (weekly) = Dollar Increase × 52
Annual Impact (monthly) = Dollar Increase × 12
Annual Impact (one-time or yearly) = Dollar Increase
Monthly Impact = Annual Impact ÷ 12
5-Year Impact = Annual Impact × 5
Example
Bread went from $3.49 to $4.29, bought weekly:
- Dollar increase: $0.80 per loaf
- Percentage increase: 22.9%
- Annual impact: $0.80 × 52 = $41.60/year
- 5-year impact: $208.00
"It's only 80 cents more" becomes $208 over five years — for one item.
Frequently asked questions
How do I find the old price? +
Old receipts, grocery loyalty apps, price history tools (like CamelCamelCamel for Amazon), and your bank/credit card statements can help reconstruct past prices. Some grocery apps show a purchase history with prices.
What's a "normal" price increase? +
The Federal Reserve targets ~2% annual inflation. Increases of 3–5% per year are noticeable but within range. Increases above 10% on any single item — especially staples — represent well above-average price pressure.
Can I use this for subscription price increases? +
Yes — set the frequency to "Monthly" and enter your old and new subscription price. The Subscription Creep Calculator is also useful for auditing all your recurring charges at once.
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