How do you calculate engineering quote burden?

Multiply engineering hours per technical RFQ by the number of RFQs needing review to get gross requested hours, then multiply by availability and the reuse-and-confidence factor. At 2.8 hr/RFQ across 22 RFQs, 90% availability and 85% reuse, gross is 61.6 hr and usable burden is 47.12 hr.

What does the reuse and confidence factor represent?

It captures how much of a quote can lean on existing models, prior jobs, or standard processes versus needing fresh engineering. At 85% it means most quotes reuse prior work; the 15% gap (8.32 hr in the example) is time at risk from uncertainty when estimates prove low.

Why account for engineering availability when quoting?

Engineers split time between quoting, sustaining work, and production support. At 90% availability, 6.16 hr of the requested 61.6 are not actually free for quoting, so planning against gross hours overcommits the team.

What is a healthy engineering hours per RFQ?

It varies by part complexity, but for moderately technical machined or fabricated parts, 2-4 hr per RFQ is common. Consistently above that suggests quotes lack reusable templates or RFQs arrive with incomplete data.

How is this different from total quoting hours?

Total quoting hours include sales and estimating time. This calculator isolates the engineering review burden specifically, the design, tolerance, and process-feasibility work that only engineers can do and that bottlenecks the pipeline.

How do I reduce engineering quote burden?

Raise the reuse factor with standard part families and quote templates, and protect availability by triaging which RFQs truly need engineering. Moving reuse from 85% to 95% on this batch would recover several usable hours.

Contract Manufacturing, Job Shop Quoting & Make-to-Order calculator

Engineering Quote Burden Calculator

Engineering Quote Burden measures how much of your engineering team's time a batch of technical RFQs really consumes once you account for the fact that engineers are not 100% available and that not every quote is built from scratch. Quoting managers and engineering leads in make-to-order shops use it to staff the front end, where unbilled engineering hours quietly erode margin on every job that never closes. The metric turns a raw hour request into a usable-hours figure and exposes the time lost to limited availability and to estimating uncertainty. It is the difference between a quote pipeline that runs on schedule and one that silently starves engineering of capacity for billable work.

What this calculator does

Estimate engineering hours consumed by technical quote reviews.
sizing engineering support for RFQs and deciding which opportunities require paid engineering review
It computes the usable engineering hours a set of technical RFQs will actually consume, after scaling the raw hour request by engineering availability and by a reuse-and-confidence factor.

Formula used

gross engineering quote hours requested = engineering hours per technical rfq × technical rfqs requiring engineering review
usable engineering quote hours = gross engineering quote hours requested × engineering availability for quoting × quote reuse and confidence factor

Inputs explained

Engineering hours per technical RFQ:
Technical RFQs requiring engineering review:
Engineering availability for quoting:
Quote reuse and confidence factor:

How to use the result

Use it during quoting-capacity planning, when a wave of technical RFQs lands and you need to know whether engineering can review them without delaying production work.
It treats all RFQs as needing the same average hours; a single high-complexity new design can swamp the average, so flag outliers separately.

Current U.S. benchmarks

The U.S. prime lending rate is 6.75% (Federal Reserve via FRED, 2026-07-02). Payback and financing math should start from today's rate, not a remembered one.

Common questions

How do you calculate engineering quote burden? Multiply engineering hours per technical RFQ by the number of RFQs needing review to get gross requested hours, then multiply by availability and the reuse-and-confidence factor. At 2.8 hr/RFQ across 22 RFQs, 90% availability and 85% reuse, gross is 61.6 hr and usable burden is 47.12 hr.
What does the reuse and confidence factor represent? It captures how much of a quote can lean on existing models, prior jobs, or standard processes versus needing fresh engineering. At 85% it means most quotes reuse prior work; the 15% gap (8.32 hr in the example) is time at risk from uncertainty when estimates prove low.
Why account for engineering availability when quoting? Engineers split time between quoting, sustaining work, and production support. At 90% availability, 6.16 hr of the requested 61.6 are not actually free for quoting, so planning against gross hours overcommits the team.
What is a healthy engineering hours per RFQ? It varies by part complexity, but for moderately technical machined or fabricated parts, 2-4 hr per RFQ is common. Consistently above that suggests quotes lack reusable templates or RFQs arrive with incomplete data.
How is this different from total quoting hours? Total quoting hours include sales and estimating time. This calculator isolates the engineering review burden specifically, the design, tolerance, and process-feasibility work that only engineers can do and that bottlenecks the pipeline.

Last reviewed 2026-05-12.