What this calculator solves
Use Kitting Cost to estimate the cost of assembling a kit from a repeated number of similarly costed components, dedicated packaging, material waste, and assembly labor. It differs from Bundle Packing Cost, which focuses on handling already-valued items into a bundle.
How to choose the inputs
Use an average component cost only when components are genuinely similar; otherwise sum them externally and enter an equivalent per-component average. Include packaging dedicated to the kit, representative assembly minutes, and a material waste rate based on component or packaging loss.
| Input | How to prepare it |
|---|---|
| Average component cost | Enter average component cost on the same currency and per-order or per-unit basis used by the other cost inputs. |
| Components per kit | Count components per kit in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
| Kit packaging cost | Enter kit packaging cost on the same currency and per-order or per-unit basis used by the other cost inputs. |
| Assembly minutes | Time assembly minutes across representative normal work and separate setup, exceptions, and breaks unless the definition includes them. |
| Hourly labor rate | Use the documented loaded or direct hourly labor rate consistently; the calculator does not decide which accounting basis applies. |
| Material waste allowance | Base material waste allowance on measured comparable work, state what the percentage covers, and review it when the process changes. |
How the calculation works
- Validate the Kitting Cost Calculator manifest: confirm that average component cost, components per kit, kit packaging cost describe the same Kitting Cost Calculator pack, batch, or planning period.
- Calculate cost per kit: apply Kit cost = (components × component cost + packaging) × (1 + waste %) + assembly labor without rounding intermediate values for Kitting Cost Calculator.
- Review the cost per kit breakdown: use the primary result for the stated decision and the secondary values to identify the input or constraint driving this Kitting Cost Calculator result.
Worked example
Three $1.20 components, $0.65 packaging, 2% waste, and four minutes at $18/hour cost about $5.54 per kit.
Next action: After: compare batch time and add final shipment packaging cost separately.
How to interpret the result
Review material and labor subtotals before pricing or comparing an assembly method. A component-heavy kit is sensitive to scrap and count accuracy; a labor-heavy kit may benefit from staging or fixtures. Build and audit a batch before adopting the estimate.
Common mistakes
- Averaging unlike component costs without checking the total.
- Including product margin or selling fees as assembly cost.
- Applying waste to labor.
- Using order-packing minutes instead of kit-assembly minutes.
Assumptions and limitations
The estimate assumes one average component cost and fixed components per kit. It excludes component-specific scrap, inventory carrying cost, equipment, supervision, quality failures, rework, and downstream shipping.
Related workflow
- Before: define bill of materials, kit packaging, and assembly boundary.
- After: compare batch time and add final shipment packaging cost separately.