How do you calculate required deliveries in an SLA window?

Multiply the required delivery rate by the window length. At 42 deliveries/hr over a 10-hour window, the fleet must complete 420 deliveries to meet the SLA.

What is the SLA delivery cost exposure?

It is the total deliveries in the window times the per-delivery late or expedite cost. Here 420 deliveries at $18 each gives a worst-case exposure of $7,560 if every delivery missed the SLA.

Is the cost exposure what I'll actually pay?

No. It is the ceiling if 100% of deliveries are late. Multiply by your expected miss rate: a 5% miss rate on $7,560 exposure means a realistic cost near $378 for the window.

How do I size my fleet from this number?

Take the 420 required deliveries, divide by the deliveries one robot completes in the window, and add headroom. If a robot does 60 deliveries per window, you need 7 robots plus buffer to protect the SLA.

What is a good cost per late or expedited delivery to assume?

Use your real recovery cost: overtime expediting, premium freight, or line-down minutes converted to dollars. The $18 default is modest; a delivery that risks stopping an assembly line can cost far more per miss.

Required delivery rate vs delivered rate?

Required rate is what the SLA demands (42/hr here); delivered rate is what your fleet actually achieves. The gap, multiplied by the window and unit cost, is your real exposure.

AMR, AGV & Intralogistics Automation calculator

Material Delivery SLA Capacity Calculator

Material delivery SLA capacity is the number of line-side deliveries an AMR or tugger fleet must complete within a committed service window, plus the dollar exposure you carry if those deliveries run late or get expedited. Production planners and intralogistics managers use it to translate a delivery-rate commitment into a hard count and a financial risk number that finance and operations both understand. When a milk-run feeds an assembly line, missing the SLA means line stoppages or premium expediting, and this puts a price on that. It connects fleet throughput planning directly to the cost of failing the line.

What this calculator does

Estimate SLA delivery demand and cost from required delivery rate, operating window, and cost per late or expedited delivery.
a logistics planner needs to quantify delivery demand and SLA cost exposure for an AMR, AGV, or route plan
It computes the total deliveries required inside an SLA window from the delivery rate and window length, and the cost exposure if every delivery were late or expedited.

Formula used

Required deliveries in SLA window = required material delivery rate × SLA operating window
SLA delivery cost exposure = required deliveries in SLA window × cost per late or expedited delivery

Inputs explained

Required material delivery rate:
SLA delivery window length:
Cost per late or expedited delivery:

How to use the result

Use it when committing to a line-feed SLA, sizing fleet capacity against a delivery rate, or quantifying the financial risk of a delivery shortfall.
The cost exposure is a worst-case ceiling assuming all deliveries incur the late/expedite cost; actual cost scales with your real miss rate, so multiply by expected miss percentage for a realistic figure.

Current U.S. benchmarks

On-highway diesel averages $4.58 per gallon this week (EIA), trending down over recent periods. Truck tonnage is up 3.4% year over year (ATA via FRED).

Common questions

How do you calculate required deliveries in an SLA window? Multiply the required delivery rate by the window length. At 42 deliveries/hr over a 10-hour window, the fleet must complete 420 deliveries to meet the SLA.
What is the SLA delivery cost exposure? It is the total deliveries in the window times the per-delivery late or expedite cost. Here 420 deliveries at $18 each gives a worst-case exposure of $7,560 if every delivery missed the SLA.
Is the cost exposure what I'll actually pay? No. It is the ceiling if 100% of deliveries are late. Multiply by your expected miss rate: a 5% miss rate on $7,560 exposure means a realistic cost near $378 for the window.
How do I size my fleet from this number? Take the 420 required deliveries, divide by the deliveries one robot completes in the window, and add headroom. If a robot does 60 deliveries per window, you need 7 robots plus buffer to protect the SLA.
What is a good cost per late or expedited delivery to assume? Use your real recovery cost: overtime expediting, premium freight, or line-down minutes converted to dollars. The $18 default is modest; a delivery that risks stopping an assembly line can cost far more per miss.

Last reviewed 2026-05-12.