Proposal: User-Friendly Denomination Names for Everyday Use (Cero & Nero) #1274
Description
Summary
Introduce intuitive, everyday names for Monero denominations to improve usability for merchants and consumers. Propose "Cero" (0.01 XMR) as the main unit and "Nero" (0.0001 XMR) as the subunit.
Problem
Current Monero displays (0.0130 XMR for a 3 CHF bread) are impractical for daily use. While technical SI units (millinero, piconero) exist, they lack the simplicity needed for commerce.
Current situation:
- 1 XMR ≈ 230 CHF (Sept 2025)
- 3 CHF bread = 0.0130 XMR ← too abstract
- Technical names (piconero, nanonero) are not merchant-friendly
Proposed Solution
| Name | Value | At 230 CHF/XMR | Use Case |
|---|---|---|---|
| Cero | 0.01 XMR | 2.30 CHF | Main everyday unit |
| Nero | 0.0001 XMR | 0.023 CHF | Subunit (like cents/Rappen) |
Conversion:
- 1 XMR = 100 Cero = 10,000 Nero
- 1 Cero = 100 Nero
Examples:
- 3 CHF bread = 1.3 Cero (instead of 0.0130 XMR)
- 50 CHF restaurant = 21.74 Cero
- 2300 CHF rent = 1000 Cero (or 10 XMR)
Benefits
- Intuitive: Similar to CHF/Rappen, EUR/Cent, USD/Cents
- Merchant-friendly: Easy to price goods (1.5 Cero vs 0.0150 XMR)
- Brand consistency: Names derive from "Monero"
- Flexible: Works at any price point
Discussion Points
- Are these names appropriate for the Monero community?
- Should wallets implement this as a display option?
- Other naming suggestions welcome
Background Research
- SI units (millinero, piconero) established 2017 for technical use
- "Tacoshi" was proposed but changed to piconero for consistency
- No previous proposals found for everyday commerce names
Note: This is a UX/nomenclature proposal, not a protocol change. It aims to make Monero more accessible for real-world transactions.