Own-Brand vs Premium Calculator
Annual savings from switching to own-brand products.
Calculate annual savings from switching branded products to supermarket own-brand. See typical difference across grocery categories.
What this tool does
Enter weekly spend on premium brands, percentage switchable to own-brand, and typical discount. The tool calculates annual savings.
Enter Values
Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Supermarket own-brand products typically cost 30-50% less than equivalent premium brand. Blind taste tests consistently find most consumers can't reliably tell the difference across categories. Typical weekly grocery shop: 15-30 could switch to own-brand without quality loss. Savings: 5-12/week = 250-625/year.
How to use it
Input weekly spend on branded/premium groceries, percentage you could switch (usually 60-80% with no quality impact), and typical discount on own-brand. The tool calculates annual savings.
What the result means
Annual savings from switching. Some categories resist switching (coffee, chocolate, sauces) where branded quality genuinely differs. Others (pasta, rice, cereals, cleaning products) switch seamlessly. Calculator assumes realistic switch ratio.
Run it with sensible defaults
Using weekly premium brand spend of 50, switchable of 70%, own-brand discount of 35%, the calculation works out to 637.00. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.
The levers in this calculation
The inputs — Weekly Premium Brand Spend, Switchable %, and Own-Brand Discount % — do not pull with equal force. Two inputs usually tip the answer one way or the other. Identify which ones matter most by flipping each value past a round threshold and watching whether the winning option changes.
How the math works
Weekly spend × switchable fraction × discount × 52 weeks. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".
Why run the calculation
Utility bills creep. Small annual increases stack into meaningful differences over a decade. Running this once a year and switching providers when the gap widens is one of the easiest ways to keep household costs in check.
What this doesn't capture
Usage varies month-to-month; tariffs change; discounts come and go. The figure here is a clean baseline — your actual annual bill will fluctuate around it. Use the calculation to benchmark providers, not as a prediction of a specific bill.
Own-brand switching produces annual savings based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Weekly spend × switchable fraction × discount × 52 weeks.
References
Frequently Asked Questions
Is quality really the same?
What categories save most?
How to test without committing?
Value-tier own brands too?
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