Supplier Delivery Score Calculator

Calculator Inputs

Supplier name

Optional but helpful for exports.

Period label

Any text: month, quarter, or PO range.

Total orders (count)

Used as the denominator for all rates.

On-time deliveries

Delivered on or before agreed date.

In-full deliveries

Complete quantities shipped and received.

Quality accepted

Passes incoming inspection / acceptance.

Documentation compliant

Correct COA, packing list, labels, etc.

Average delay (days)

Average late days for delayed orders.

Critical incidents (count)

Safety, compliance, or major disruption events.

Weights (auto-normalized)

Recommended total: 100

On-time weight

In-full weight

Quality weight

Docs weight

Penalty settings

Penalty per delay day (points)

Subtracts score based on average delay days.

Penalty per critical incident (points)

Subtracts score per major issue recorded.

Results appear above this form after you calculate.

Example Data Table

Supplier	Orders	On-time	In-full	Quality	Docs	Avg delay	Critical	Score*
Apex Components	50	46	47	48	49	0.8	0	92.30
Nova Packaging	40	34	36	38	37	1.7	1	79.10
BlueRiver Metals	30	29	27	28	28	0.2	0	93.90
Vertex Fasteners	25	20	23	21	24	2.4	0	74.80
Orion Logistics	18	15	16	17	16	1.1	2	63.20

*Scores shown are illustrative and depend on your weights and penalties.

Formula Used

On-time rate = (On-time deliveries ÷ Total orders) × 100
In-full rate = (In-full deliveries ÷ Total orders) × 100
Quality acceptance rate = (Quality accepted ÷ Total orders) × 100
Documentation compliance rate = (Documentation compliant ÷ Total orders) × 100

Weighted score = (On-time rate × On-time weight + In-full rate × In-full weight + Quality rate × Quality weight + Docs rate × Docs weight) ÷ 100

If weights do not total 100, the calculator normalizes them to keep scoring consistent.

Final score = clamp(Weighted score − (Avg delay days × Penalty per delay day) − (Critical incidents × Penalty per critical), 0, 100)

How to Use This Calculator

Enter total orders for the period you want to assess.
Fill in counts for on-time, in-full, quality accepted, and documentation compliant deliveries.
Optionally add average delay days and critical incidents to reflect risk.
Adjust weights to match your quality policy and category criticality.
Click calculate, then download CSV or PDF for your records.

FAQs

1) What does the final score represent?

It’s a 0–100 rating combining delivery reliability, completeness, quality acceptance, and documentation accuracy, minus optional penalties for delays and critical incidents.

2) Do my weights need to add up to 100?

No. The calculator automatically normalizes weights so the score stays comparable across suppliers, even if you enter totals like 50 or 200.

3) How should I pick penalty values?

Start small, then calibrate using historical performance. Use larger penalties for regulated parts, safety risks, or production-critical materials.

4) What if some orders are split or partially received?

Count an order as in-full only when the required quantity is fully received. If your system tracks line items, you can adapt totals to lines instead.

5) Should “quality accepted” include rework and concessions?

Use your internal rule. Many teams count concessioned lots as not accepted to encourage prevention, while others track them separately as a penalty.

6) How can I compare multiple suppliers fairly?

Use the same weights, definitions, and period length. Keep denominators consistent, and avoid mixing emergency shipments with normal replenishment cycles.

7) Is this score suitable for supplier audits?

Yes, as a supporting KPI. Pair it with evidence like delivery logs, inspection records, corrective actions, and a clear definition of each metric.