📖 About This Calculator

This Arknights Level-Up Cost Calculator helps you plan your operator upgrades efficiently. Whether you're promoting operators to Elite 1 or Elite 2, or planning skill upgrades, this tool provides accurate calculations for all required resources.

The calculator includes comprehensive data for all operator rarities (3-6 stars) and accounts for LMD costs, EXP requirements, and promotion materials. It's designed to be fast, accurate, and responsive across all devices.

This tool outperforms competitors by providing instant calculations, mobile-friendly design, and comprehensive material breakdowns that help you plan your farming routes effectively.

🎮 How to Use

1. Select Operator Rarity: Choose between 3-star to 6-star operators. Higher rarity operators require more resources for promotion.
2. Set Current Level: Enter your operator's current level. This determines the starting point for EXP calculations.
3. Choose Target Level: Set your desired level. Remember that level caps increase with Elite promotions.
4. Elite Levels: Select current and target Elite levels. Elite promotions require specific materials and significant LMD investment.
5. Skill Upgrades: Optionally include skill upgrade costs from rank 1 to 7, which require skill books and additional materials.
6. Calculate: Click the calculate button to get instant results showing total LMD, EXP, and material requirements.

The calculator automatically validates your inputs and provides detailed breakdowns to help you plan your resource allocation efficiently.

💡 Pro Tips & Strategies

• Prioritize E1 Level 55: This level provides the best cost-to-stats ratio for most operators before considering E2 promotion.
• Plan Elite 2 Carefully: E2 promotions are expensive but unlock third skills and improved talents. Focus on key operators first.
• Skill Priority: Upgrade skills to rank 4 initially, then rank 7 for important operators. Ranks 8-10 require rare materials.
• Resource Management: Farm materials during optimal stages. Use the calculator to batch your upgrade plans and minimize sanity waste.
• Event Planning: Calculate costs before major events to ensure you have enough resources for new operators.
• Team Synergy: Consider promoting operators that work well together rather than individual favorites for maximum efficiency.

Remember that investment in core operators (DPS, defenders, healers) typically provides better returns than spreading resources across many operators.