A supplier scorecard turns several judgements about a vendor into one comparable number. You decide how much each criterion matters, score each supplier from 0 to 100 and the calculator returns the weighted result.
Use it to compare two suppliers side by side or to track one supplier over time by entering the same figures for both columns.
Supplier Scorecard Calculator
Enter your numbers to see the result.
Estimates for planning only. Results depend on the accuracy of the inputs and the assumptions of the standard formula.
How the score is calculated
Weighted score = sum of (weight x score) / 100 across the five criteria, with weights adding up to 100%.
Choose the criteria and weights before you look at supplier results, so the weights reflect your priorities rather than the outcome you want. Base scores on data where you can: defect rates for quality, on-time delivery percentage for delivery, total landed cost for cost (see the landed cost calculator), response times for responsiveness and audit or certification results for compliance.
Worked example
Weights: quality 30%, delivery 25%, cost 25%, responsiveness 10%, compliance 10%.
- Supplier A = 0.30 x 92 + 0.25 x 88 + 0.25 x 75 + 0.10 x 80 + 0.10 x 90 = 85.35
- Supplier B = 0.30 x 85 + 0.25 x 95 + 0.25 x 90 + 0.10 x 70 + 0.10 x 80 = 86.75
B scores slightly higher thanks to delivery and cost, while A is stronger on quality and compliance. The gap is small, so the decision should also consider risk and strategy.
Using the result
Treat small differences with care. A gap of a few points can disappear when a weight changes slightly, so test how the ranking responds by adjusting the weights. If one supplier wins under every reasonable weighting, the choice is robust.
Add must-have gates outside the score, such as required certifications or minimum financial strength, so a high total cannot hide a critical failure. Review scorecards on a regular schedule and share them with suppliers to drive improvement. See our procurement and supplier guides.
Common questions
Which criteria should a supplier scorecard include?
Most scorecards cover quality, delivery, cost, responsiveness and compliance or risk. Add criteria that matter to your business, such as sustainability or innovation, and keep the list short enough that each one is measured with real data.
How are the weights chosen?
Base them on what a failure would cost you. If late deliveries stop a production line, weight delivery higher. Agree the weights with the people who depend on the supplier before scoring, and write them down so they are not adjusted to fit a preferred result.
Can a scorecard replace judgement?
No. It organises evidence and makes comparisons consistent, but strategic fit, the relationship and risk exposure still need human judgement. Use the score as one input, alongside gates such as certifications and a review of what happens if the supplier fails.
How are measurements turned into a 0 to 100 score?
Set a rule in advance. For on-time delivery, the percentage itself can be the score. For cost, give the lowest landed cost 100 and scale the others against it. For defects, map ranges of defect rates to points. Use the same rule for every supplier.
What if the weights do not add up to 100?
The calculator shows an error until they do, because the weighted score is only a score out of 100 when the weights total 100%. Adjust one or more weights until the sum is exact, then check the per-criterion contributions in the result to confirm each weight behaves as intended.