Calculator
Moving Boxes Calculator
Box count for a move scales with home size and room count, not a flat per-square-foot guess — a small, sparsely furnished apartment and a similarly sized but heavily furnished one need genuinely different box counts, which is why published moving-industry averages are organized by room type and home size rather than square footage alone.
This calculator uses those per-room averages (kitchens and living rooms typically need more boxes than bedrooms of similar size, because kitchens have more small, fragile, awkwardly-shaped items) rather than one blanket square-footage formula. A move also produces more discard than most people plan for, so it is worth sizing that at the same time with the dumpster size calculator.
Calculate your quantity
Total boxes
64 boxes
- Small
- 29 boxes
- Medium
- 22 boxes
- Large
- 11 boxes
- Wardrobe
- 2 boxes
Shopping summary
- • 29 small box(es)
- • 22 medium box(es)
- • 11 large box(es)
- • 2 wardrobe box(es)
This is an estimate — confirm structural work with a professional.
How this calculation works
Box count = sum of per-room averages across your home's room mix, broken into size categories (small boxes for books and dense items, medium for general household goods, large for lightweight bulky items, and specialty boxes for wardrobe/dishes/mirrors). Kitchens and living/dining rooms consistently need the most boxes per room in published moving-industry data, since they hold a high volume of small, individually-wrapped items; bedrooms need fewer boxes but more of that volume tends to go in large boxes for linens and clothing.
Home size still matters, but as a multiplier on room count and room size, not as the primary driver — a studio apartment's kitchen needs meaningfully fewer boxes than a large family kitchen even if both are being packed by 'square footage of home' logic that ignores what's actually in the room.
The formula
small = round(bedrooms×8+5); medium = round(bedrooms×6+4); large = round(bedrooms×3+2); wardrobe = max(1, round(bedrooms/2))
- the +5 / +4 / +2 constants
- A fixed baseline added regardless of bedroom count, standing in for shared spaces — kitchen, living room, bathroom — that every home has whether it carries zero bedrooms or several. This is why box count never approaches zero even for a studio.
- the ×8 / ×6 / ×3 slopes
- How many boxes of EACH size one additional bedroom adds — small boxes grow fastest per bedroom (dense books and closet contents), large boxes slowest (bulky, lightweight items don't multiply the same way per room).
- wardrobe = max(1, round(bedrooms/2))
- A floor of 1 wardrobe box regardless of bedroom count — even a studio with zero bedrooms entered still returns 1, since the max() guards against the formula returning zero for a home that still has closet contents to move.
Where these numbers come from
- per-room averages weighted toward kitchens and living areas
- Trade convention drawn from published moving-industry planning figures; the specific per-bedroom slopes and shared-space intercepts here are this calculator's own working numbers rather than a single cited source, since packing volume genuinely varies by household, not just by room count.
- bedroom count as the only input
- Trade convention, stated as a real limitation: this formula has no field for garage, attic, or basement contents, which published guidance consistently flags as needing their own separate estimate rather than folding into a per-bedroom count.
- linear-in-bedrooms model with a fixed intercept
- The reason lives in the function's arithmetic: each box category is bedroom-count times a slope PLUS a flat constant, so the model is not proportional to bedroom count — doubling bedrooms never doubles the box total, since the flat constant doesn't scale with it.
Worked examples
A 5-bedroom family home
| Bedrooms | 5 |
|---|
| Total boxes | 99 boxes |
|---|---|
| Small | 45 boxes |
| Medium | 34 boxes |
| Large | 17 boxes |
| Wardrobe | 3 boxes |
Five bedrooms return 99 boxes total: 45 small, 34 medium, 17 large, and 3 wardrobe — nearly half the order in small boxes alone, which tracks how books, kitchenware, and closet contents dominate a large family home's packing volume.
At this bedroom count the flat per-home constant is a minor share of the total — the 5 baseline small boxes are just 11% of the 45 small boxes this home needs, with the other 40 coming straight from the five bedrooms. A much smaller home sees the opposite balance.
A studio or 1-bedroom apartment
| Bedrooms | 1 |
|---|
| Total boxes | 29 boxes |
|---|---|
| Small | 13 boxes |
| Medium | 10 boxes |
| Large | 5 boxes |
| Wardrobe | 1 boxes |
One bedroom returns 29 boxes: 13 small, 10 medium, 5 large, 1 wardrobe — nearly a third of the 5-bedroom home's 99 boxes, not the one-fifth a straight bedroom-count ratio would suggest, because the flat per-home baseline dominates a small move far more than it does a large one.
That baseline is the real reason a studio move never feels like 'almost no boxes': even at zero bedrooms entered, this formula still returns a full kitchen-and-living-room baseline plus a floor of 1 wardrobe box, because a home with no bedrooms at all still has a kitchen and a closet to pack.
Common mistakes
- Estimating box count purely by home square footage, which ignores how densely different rooms are actually packed with belongings.
- Under-buying specialty boxes (dish barrels, wardrobe boxes, mirror/picture boxes) which protect fragile and awkward items that don't fit standard box sizes well.
- Not accounting for a garage, attic, or basement's contents separately, since these spaces often hold more volume than their square footage suggests.
- Buying only one box size, which forces oversized boxes to be underfilled (wasted space, more boxes needed) or overfilled (too heavy, risk of the box failing).
- Not budgeting enough packing paper or bubble wrap alongside the boxes themselves — a box count that's accurate on paper still comes up short if there isn't enough padding material to protect what's inside.
- Underestimating tape needs — a common rule of thumb is roughly one roll of packing tape per 8-10 boxes, which adds up fast on a full-home move and is an easy line item to forget when budgeting just the boxes.
Shopping summary
Buy a size mix per the per-room breakdown above (more small/medium boxes for kitchens, more large boxes for bedrooms/closets, specialty boxes for dishes/mirrors/wardrobe items), rounding each category up rather than averaging across room types.
Worked example: a 3-bedroom home with a full kitchen and living/dining area commonly lands around 15-20 small boxes, 20-25 medium boxes, 10-15 large boxes, plus 3-5 specialty boxes (dish barrel, wardrobe, mirror/picture) — a noticeably different mix than the same box-count total split evenly across all sizes, since kitchens and living areas dominate the small/medium categories specifically.
FAQ
Why do kitchens need so many more boxes than bedrooms?
Kitchens hold a high volume of small, individually fragile, and oddly shaped items (dishes, glassware, small appliances) that each need padding and careful packing, which uses up box volume much faster than folded clothing or linens do in a bedroom.
Is it worth buying specialty boxes instead of using standard boxes for everything?
For fragile or awkward items like dishes, mirrors, and framed art, yes — specialty boxes are sized and reinforced specifically for those items' shapes and fragility, which reduces breakage risk compared to improvising with a standard box and extra padding.
Should I buy more boxes than the calculated estimate?
A small cushion (5-10% more small and medium boxes) is a reasonable precaution, since it's common to underestimate how many miscellaneous small items accumulate throughout a home beyond the main furnished rooms, and running out of small boxes mid-pack is a more disruptive interruption than running out of large ones.
Can I reuse boxes from a previous move?
Yes, as long as they're structurally sound (no crushed corners, water damage, or torn seams) — inspect each one before reuse, since a box that looks fine folded flat can be weaker than it appears once loaded, and a failed box bottom mid-move risks both the contents and whoever is carrying it.
Do I need extra boxes for a garage or basement beyond the room-based estimate?
Yes — these spaces are usually excluded from a standard per-room box estimate since their contents vary so widely from home to home, so walk through and estimate a garage or basement's boxes separately based on what's actually stored there rather than assuming the room-count formula covers them.
Where to go next
The projects this number is a step of, the guides that explain the method behind it, and the rest of its trade group.