A second freezer is the one appliance nobody plans for. It gets bought after the fact - after the bulk meat order that wouldn't fit, after the season the garden produced more than anyone could eat, after the chest of drawers in the laundry got replaced by something colder.
So the decision gets made in a hurry, on a showroom floor, between two boxes that look like different appliances and do exactly the same job. The spec cards offer litres and a star rating. Neither is the thing that decides it.
The thing that decides it is shape. A chest and an upright buy their litres in completely different currencies, and one of those currencies your house may not have. This guide settles three things: which form your space can take, whether the spot you have in mind is a spot a freezer can actually live in, and what it costs to run once it's there.
The fork is a shape, not a feature list
Across the 166 freezers we list, 90 are chest and 76 are upright - the second figure including one under-bench model the freezer quiz folds in with the uprights. Of those 76, 54 are freestanding and 22 are built to sit inside cabinetry.
Here is the difference that generates the others. A chest freezer buys litres with floor area. An upright buys them with wall height.
That isn't a metaphor. Across the chest freezers we list, width tracks capacity almost perfectly - a bigger chest is a longer chest, running from 545mm to 2,145mm wide with no gaps and no standard sizes between. And every chest freezer we list is bench height: a median 845mm, with 81 of the 84 that state a height under 900mm. You cannot buy a tall chest freezer, because a tall chest freezer would be a well.
Uprights do the opposite. They cluster at cabinet widths - 45 of the 75 that state one are under 600mm, at a median 595mm - and they go up instead, to a median height of 1,746mm, with 28 of them above 1.8m.
The real question isn't which you prefer, but which currency your house has spare. A garage or a laundry usually has floor. A kitchen almost never does.
Capacity lands close at the middle and separates at the top. A median 258L for chest against 242L for upright - near enough to identical. But chest reaches 705L where upright stops at 570L. If you're buying to store half a beast or a season of produce, the top end is the reason chest wins.
And chest is much cheaper per litre. Across the models we list that state both a price and a capacity - 27 chest and 14 upright, each from only a handful of brands - chest works out at a median $2.60 a litre. Uprights run at roughly twice that. The two priced cabinet-integrated models we list sit near $16 a litre, which is not a freezer price so much as a joinery price.
Worth knowing: only 41 of our 166 freezers carry a price at all, and those 41 come from five brands. Read the $2.60 as solid and the rest as direction.
Why the gap? A chest is a simpler cabinet. One lid seal instead of a full-height door, no fan, no shelves or drawer runners, and less surface area wrapped around each litre. You are paying for less machine.
What you give back is retrieval. Anything below the top basket takes a dig, and there's no seeing what's underneath without unloading what's on top. That's the honest trade: a chest is cheaper, bigger and better at its job, and it will quietly bury a bag of chicken thighs for two years.
Where it will live, and the one question we can't answer for you
A second freezer usually ends up in a garage, a shed, or an uninsulated laundry. That is exactly where the rating on the back of the appliance starts to matter.
Every freezer is built to hold temperature within a climate class - a rated range of room temperature it is designed to work in. Four classes cover domestic appliances:
The four domestic climate classes and the ambient ranges the rating system defines for them. This is the standard's definition, not a measurement of our catalogue.
Run a freezer above its rated ceiling and the compressor is working against an ambient it wasn't specified for. An uninsulated Australian garage in February does not sit inside most of those ranges, and the appliance doesn't warn you. It runs longer, holds temperature less well, and wears.
Here is what we can't do, stated plainly: we can't tell you which of the freezers we list carry which class. Our records don't hold the field. It isn't a spec we've decided not to show you - it's one we don't have, and we'd rather say so than imply a silence is a result.
What's left is better than nothing, and it's the reason this section exists: the class is printed on the appliance's own rating plate, usually on the back or inside the lid. If the freezer is going anywhere that isn't a climate-controlled room, that plate is the spec to check before the star rating, the litres, or the price. Ask the retailer for it - they can find it faster than you can.
The rest of where-it-will-live is easier. Chest widths are a pure continuum, so you size a chest by measuring the floor you can spare and reading the width that fits it. Uprights are a fitted appliance: 595mm is the median, which is a standard cabinet width, and that is not a coincidence.
What it costs to run, and why that isn't the deciding spec
This is one of the few categories where we'll put a dollar figure on running cost, and the reason is mechanical: a freezer runs continuously, so its registered kWh/year doesn't hide a guess about how often you use it.
At around 30c/kWh - roughly the national middle, though your state moves it either way:
- Chest: a median 230 kWh/year, about $69 (across all 90, every one of which states a figure)
- Freestanding upright: a median 236 kWh/year, about $71 (across the 38 that state one)
- Cabinet-integrated upright: a median 271 kWh/year, about $81 (across 21)
Read those three numbers again, because they say something the showroom won't. A chest and a freestanding upright cost about two dollars a year apart. The gap people expect between the forms isn't there. The only real separation is the cabinet-integrated group, and even that runs about twelve dollars a year clear of the chests.
Across all 149 freezers that state an energy figure, the full range runs 113 to 660 kWh - $34 to $198 a year. That spread dwarfs the difference between the forms. Running cost is a model question, not a form question, and choosing chest over upright to save on power is choosing for the wrong reason.
But consider: the intuition isn't wrong so much as aimed at the wrong statistic. The most efficient freezers we list are chests. All three 6-star models are chest freezers, and so are 9 of the 12 rated 5.5. The medians are identical at 3.5 stars for both forms - so a typical chest is no more efficient than a typical upright, but the ceiling is higher. If you want the cheapest freezer to run, you're shopping the top of the chest range, not the category.
Our energy costs guide has the state-by-state rates if you want to redo that arithmetic on your own tariff.
Frost-free, or a Sunday with a hairdryer
This tracks the fork almost exactly. 60 of the 76 uprights we list are frost-free. Two of the 90 chest freezers are.
The two mechanisms are genuinely different machines. Frost-free circulates air past a cold plate and periodically warms that plate to clear the ice off it, so frost never accumulates anywhere you can see. Manual defrost uses static cold: simpler, quieter, and it lets ice build on the walls until you empty the freezer, switch it off and wait.
That job is once or twice a year, it takes an afternoon, and it happens whether or not you have somewhere to put six months of frozen food while you do it. If that sentence made you wince, you want an upright.
But consider: frost-free runs a fan and a defrost cycle, so it uses energy that a manual-defrost freezer doesn't. We can't tell you how much. Our own figures can't separate it from the difference between the forms, and we won't invent a number to fill the gap.
One more difference, and it's the kind that only shows up after you own the thing. 54 of the 76 uprights we list state a door alarm. Not one of the 90 chest freezers does. The form whose lid you cannot see standing ajar from across the room is the form that never tells you it is.
What you can safely ignore
Fast freeze. 92 of the 166 models we list have it. It runs the compressor hard for a few hours so a large warm load doesn't lift the temperature of everything around it. Useful once or twice a year, present on most models, and not a reason to choose one.
Interior lights, icemakers, child locks and reversible doors. Each is stated on under half our catalogue - icemakers on 23 models, child locks on 26. We won't rank a spec most of the field doesn't publish, and neither should you.
Noise figures. 46 of 166 state one, and they land on the same median for both forms. There's nothing to compare here.
The star rating, as a form argument. Covered above: it separates models, not chest from upright.
And one thing to weigh before any of it. If you're here because the kitchen freezer keeps running out of room, a second appliance isn't the only answer - a fridge with a bigger freezer compartment needs no second spot in the house and no second thing to defrost. Our fridges pages cover that side. A standalone freezer earns its place when you need bulk storage, not a bit more room for the peas.
You now hold the two answers this decision turns on: which currency your house has spare - floor for a chest, wall height for an upright - and whether the spot you have in mind is somewhere a freezer is rated to live. The first you can settle with a tape measure. The second is on a plate on the back of the appliance.
Take the freezer quiz and it'll work through the rest against the 166 models we list, with the reasoning shown on every match.
If you want the wider view first, our freezers buying guide covers the same specs alongside the full type breakdown.