Should I price just below round numbers to improve conversion?
Muhammed Tüfekyapan
Founder & CEO
TL;DR - Quick Answer
Complete Expert Analysis
Should I Price Just Below Round Numbers to Improve Conversion?
The left-digit effect is one of the most replicated findings in pricing psychology: $39 is perceived as significantly cheaper than $40 because the leftmost digit drops from 4 to 3. This perception gap is real even when the actual price difference is only 2.5%. The question for cosmetics brands is whether this price psychology aligns with your brand positioning.
Left-Digit Effect in Cosmetics Pricing
| Price | Perceived Category | Conversion Effect |
|---|---|---|
| $29.99 vs $30 | Budget/accessible | Charm wins - shoppers think "20s range" |
| $39 vs $40 | Mid-range | Modest charm advantage |
| $48 vs $50 | Accessible premium | $48 still in "40s range" perception |
| $89 vs $90 | Premium | Minimal effect; $90 may signal quality better |
| $145 vs $150 | Luxury | $150 round number signals luxury tier confidence |
Rules for Below-Round Pricing
- Use for products $15-55 where value perception matters
- Avoid .99 endings for clinical/luxury brands
- If using charm pricing, be consistent across the range
- Test: charm pricing increases conversion but can reduce LTV for premium segments
Common Mistake
Using charm pricing on some products and round pricing on others without a clear rationale creates pricing inconsistency that confuses shoppers about your brand tier. Pick a pricing strategy that reflects your positioning and apply it consistently across your range.
Growth Suite Tip
Test pricing psychology with Growth Suite's A/B Testing Module. Run $38 vs $40 on your mid-range bestseller for 3-4 weeks. Measure both conversion rate AND revenue per visitor - sometimes a higher price with slightly lower conversion produces more total revenue due to the margin difference. Always measure revenue impact, not just conversion rate.
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With over a decade of experience in e-commerce optimization, Muhammed founded Growth Suite to help Shopify merchants maximize their conversion rates through intelligent behavior tracking and personalized offers. His expertise in growth strategies and conversion optimization has helped thousands of online stores increase their revenue.
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