⏱️ Supply Chain & Logistics
Lead Time Calculator
Calculate total lead time including processing, transit, and buffer.
📋 Order Processing
Order Processing Time
days
Time to process and prepare order
🚚 Transit & Shipping
Shipping / Transit Time
days
Actual shipping/delivery time
Shipping Mode
Air: fastest, Sea: slowest, Land: medium
🛡️ Buffers & Delays
Safety Buffer
days
Safety stock / buffer days
Customs Clearance
days
Customs clearance delay (if applicable)
📊 Reliability Factor
On-Time Delivery Rate
%
Supplier / carrier reliability
Lead
0
Total Lead Time
0 days
from order to delivery
Processing Time
0 days
Transit Time
0 days
Buffer & Customs
0 days
Recommended Order Date
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📊 Lead Time Breakdown
| Component | Days | % of Total |
|---|
How the formula works
Total Lead Time = Processing + Transit + Buffer + Customs | Adjusted = Total ÷ (OTD Rate ÷ 100)
- Order Processing = Time to receive, process, and prepare order
- Transit Time = Actual shipping time from supplier to destination
- Buffer = Safety stock to handle variability
- Customs = Clearance time for international shipments
- OTD Rate = On-Time Delivery reliability (percentage)
- Adjusted Lead Time = Total Lead Time ÷ (OTD Rate ÷ 100)
- Recommended Order Date = Current Date + Total Lead Time
- Shipping Modes: Air (fastest), Sea (slowest), Land (medium)