Planogram Calculator
Calculate optimal product facing allocations for shelf space, balancing high-velocity and standard products.
About this calculator
The Planogram Calculator converts a run of shelf space into a facing count — how many product-width slots the section actually holds — and splits that count between high-velocity and standard SKUs so a merchandiser can allocate shelf real estate before building the actual planogram layout. Total Facings comes from dividing Total Shelf Length (converted to inches) by Avg Facing Width, rounded down since a partial facing can't hold a product; the leftover inches show up separately as Remaining Spacing, which accounts for end caps, dividers, or simply shelf that doesn't divide evenly by the average product width. High-Velocity SKU Allocation % sets what share of those total facings goes to the fastest-moving products, and High-Velocity Facings and Standard Facings split the total accordingly — a common retail merchandising principle is that top sellers earn disproportionate space relative to their share of the SKU count, since more facings at eye level typically drives more units sold.
Avg Facings per SKU divides Total Facings by Number of Products (SKUs), giving a baseline "if every product got an equal share" figure to compare against the actual high-velocity/standard split — a wide gap between that average and the number of facings a specific high-velocity item actually needs signals the section may be over- or under-allocated. This calculator works at the section level: it estimates facing counts and space allocation, not the physical arrangement of individual SKUs on the shelf, which still requires a planogram software tool or manual layout.
Inputs
Results
Total Facings
24
How to Use This Calculator
- Enter total shelf length (ft) and number of products (SKUs) to be planogrammed.
- Set high-velocity SKU allocation % (how much shelf space for fast movers).
- Review total facings, high-velocity facings, standard facings, facings per product, and remaining spacing (unused shelf inches).
- Use facings data to build or validate your planogram in your space planning tool.
- Rebalance allocations based on sales velocity data -- high-velocity items deserve more facings.
How the result changes with Total Shelf Length (ft)
| Total Shelf Length (ft) | Total Facings |
|---|---|
| 4 | 12 |
| 6 | 18 |
| 12 | 36 |
| 20 | 60 |
What each input means
- Total Shelf Length (ft)
- Linear feet of available shelf space for the section
- Number of Products (SKUs)
- Total distinct SKUs to place on the shelf
- High-Velocity SKU Allocation %
- Percentage of facings allocated to top-selling products
- Avg Facing Width (in)
- Average width of a single product facing in inches
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersTotal Shelf Length (ft) = 8, Number of Products (SKUs) = 12, High-Velocity SKU Allocation % = 30, Avg Facing Width (in) = 4 = 4 input(s) provided
- Calculate Total FacingsTotal Facings24 = 24
- Calculate High-Velocity FacingsHigh-Velocity Facings7 = 7
- Calculate Standard FacingsStandard Facings17 = 17
Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why does Total Facings use a rounded-down value instead of an exact fraction?
A facing is one physical slot on the shelf wide enough for a single product, so a shelf that fits 22.7 facings' worth of width can only actually hold 22 full facings — the remaining 0.7 facings' worth of space can't display a partial product. That leftover space is reported separately as Remaining Spacing rather than silently discarded.
What does Remaining Spacing tell me?
Remaining Spacing is the shelf space left over after fitting as many whole facings as possible at your Avg Facing Width — it's the gap a merchandiser can use for shelf dividers, signage, end-cap treatments, or simply as buffer, rather than trying to force in another product that doesn't fit cleanly.
Should high-velocity products always get more than their proportional share of facings?
That's the standard merchandising practice this calculator assumes — giving top-selling SKUs a higher share of facings than their share of the total product count, since more visible shelf space for a proven seller typically drives incremental sales. The right allocation percentage varies by category and by how concentrated your sales actually are among a few SKUs, so treat the High-Velocity SKU Allocation % input as a starting assumption to tune against your own sales data.
How is Avg Facings per SKU different from the High-Velocity/Standard split?
Avg Facings per SKU is simply Total Facings divided evenly across Number of Products (SKUs) — an equal-share baseline that ignores sales velocity entirely. The High-Velocity and Standard Facings outputs instead weight the allocation by the High-Velocity SKU Allocation % you set, so comparing the two shows how much extra space top sellers get relative to a flat, equal-space approach.
Does this calculator tell me exactly where to place each product on the shelf?
No — it estimates how many facings the section holds in total and how that space should split between high-velocity and standard SKUs, which is the planning step before building an actual planogram. Placing specific SKUs in specific slots (eye level, end caps, cross-merchandising adjacencies) still requires a dedicated planogram tool or manual layout work using these facing counts as a budget.
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