Vendor Scorecard Calculator

Work out vendor scorecard instantly with clear inputs, formula shown and shareable results.

About Vendor Scorecard Calculator

A vendor scorecard weights quality, delivery, cost and service — commonly 35/30/20/15 — into a single comparable figure. Reporting the weakest dimension alongside the total prevents a strong average from hiding a single unacceptable failure area.

Formula

Weighted score

Score = Quality x 35% + Delivery x 30% + Cost x 20% + Service x 15%

Worked example

With the default values below, Vendor Scorecard Calculator returns Weighted vendor score of 83.65. Change any input above and every figure here is recalculated in your browser.

Inputs used

Quality score (out of 100): 88
Delivery score (out of 100): 76
Cost competitiveness score (out of 100): 82
Service and responsiveness score (out of 100): 91

Results

Weighted vendor score: 83.65
Rating: Approved
Weakest dimension score: 76.0
Contribution from quality: 30.80

Step by step

1Values used
2Weighted score
3Weighted vendor score= 83.65
4Rating= Approved
5Weakest dimension score= 76.0
6Contribution from quality= 30.80

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why is cost weighted lowest?

Because a cheap supplier that fails on quality or delivery costs far more than the price saved. Cost is already tested at award through the tender.

Should weights vary by category?

Yes. Safety-critical parts weight quality far higher; commodity supplies can weight cost more heavily.