Kalkulator Reorder Point
Optimasi inventory management dengan menentukan titik pemesanan ulang yang tepat. Hitung reorder point dan safety stock optimal untuk menghindari stockout sambil menjaga service level.
Rata-rata permintaan harian
Waktu dari order hingga barang tiba
Stock penyangga untuk antisipasi ketidakpastian
📖 Reorder Point Formula:
Reorder Point = Average Demand during Lead Time + Safety Stock
= (Daily Demand × Lead Time) + Safety Stock
⚠️ Variability Impact:
• Higher variability = Higher safety stock needed
• Demand variability: fluctuation in daily sales
• Lead time variability: inconsistent delivery times
Analisis Reorder Point
📊 Current Analysis
Average Demand during Lead Time350 units
Current Safety Stock100 units
Reorder Point
450 units
Order when stock reaches this level
Stockout Risk
🟡 Medium
🛡️ Safety Stock Analysis
Current Safety Stock100 units
Recommended (95% service level)129 units
⚠️ Safety stock kurang! Disarankan menambah 29 units untuk service level 95%.
📈 Service Level Scenarios
90% (Acceptable)
ROP: 450
Safety: 100
95% (Good)
ROP: 479
Safety: 129
99% (Excellent)
ROP: 532
Safety: 182
ROP = Reorder Point, calculated with different safety stock levels
📅 Stock Timeline Example
Day 0: Stock = 650 units
Day 5: Stock reaches 450 units → REORDER NOW!
Day 12: New stock arrives, current stock = 100 units
Safety stock protects against demand spikes or delivery delays
📊 Inventory Levels
Reorder Point450 units
Safe Zone
Reorder
Critical
💡 Rekomendasi
⚠️ Safety stock kurang. Disarankan 129 unit.
💡 Order ketika stock mencapai 450 unit.
🔧 Implementation Tips:
• Monitor actual demand vs forecast untuk adjust parameter
• Set up automated alerts saat stock mendekati reorder point
• Review lead time performance supplier secara berkala
• Sesuaikan safety stock untuk produk musiman
• Koordinasi dengan EOQ untuk optimal ordering strategy