Choosing a Fridge begins with determining its volume - a key parameter that determines how much food you can store without overloading the equipment. But how can you accurately find out this indicator if the characteristics indicate only the dimensions, and the passport is lost? In this article, we will analyze 5 working methods calculation of volume - from official manufacturer data to independent measurements, taking into account the nuances of the design.
An error in choosing the volume is fraught with consequences: a refrigerator that is too small will force you to go to the store every day, and an excessively large one will lead to excessive consumption of electricity and irrational use of space. We will explain in detail how convert external dimensions into liters of usable volume, which zones to take into account (freezer, freshness zone), and why the actual capacity may differ from the declared one by 15-20%.
1. Method No. 1: Data from the passport or label
The most reliable source of information is technical passport the refrigerator or a sticker on the back wall (usually next to the serial number). Manufacturers indicate there total volume (the sum of the refrigeration and freezer compartments) and usable volume (including deductions for shelves, drawers and walls). For example, the model Samsung RB30A32N0SA has a total volume of 311 liters, and a useful volume of 296 liters.
If the documentation is lost, check:
- 📄 Warranty card —sometimes duplicates key characteristics.
- 🖥️ Official website of the brand —enter the model in the search bar (for example, LG GA-B489YGQZ).
- 🛒 Receipt or product card from the store - the brand and volume.
Please note: some manufacturers (for example, Bosch or Liebherr) indicate the volume according to the standard IEC 62552, which only takes into account space with a temperature of up to +5°C. This means that the freshness zone (0°C) or wine compartments may not be included in the total. displacement.
2. Method No. 2: Calculation by dimensions (formula)
If you do not have a passport and have not yet purchased a refrigerator (for example, you are choosing a model in an online store), use formula for calculating volume by external dimensions:
Volume (l) = Length (cm) × Width (cm) × Height (cm) × Fill factorThe fill factor depends on the type of refrigerator:
- 🧊 Single chamber (refrigerator compartment only) -
0.4–0.5. - ❄️ Two-chamber (refrigerator + freezer) -
0.55–0.65. - 🍷 Side-by-Side —
0.7–0.8(due to the large width). - 🏠 Built-in —
0.6–0.7(take into account the thickness of the housing for installation).
Example: refrigerator ATLANT XM 4021-000 has dimensions 60×63×185 cm. Calculate:
60 × 63 × 185 × 0.6 = 423 l (real volume - 385 l, error ~10%).Why does the formula give an error?
Because it does not take into account:
- Wall thickness (for models with No Frost it is greater due to ventilation).
- Volume occupied by the compressor and condenser (up to 10–15 liters in the lower part).
- Height of the legs (usually 2–5 cm are not included in the usable space).
⚠️ Attention: For refrigerators with freshness zones (for example, Samsung Twin Cooling Plus) or French door the coefficient may be lower by 5-10% due to additional partitions.
3. Method No. 3: Measurements of the internal space
If the refrigerator is already at home, but its volume is unknown, measure internal dimensions each chamber separately. You will need:
- 📏 Tape measure or ruler (better laser for accuracy).
- 📝 Notepad for notes.
- 🧮 Calculator.
Action algorithm:
- Remove all shelves, drawers and containers.
- Measure depth (from the front to the back wall), width and height refrigerator compartment. Repeat for the freezer.
- Multiply the values for each chamber separately.
- Add the results to get the total volume in cubic centimeters, then convert to liters (1 liter = 1000 cm³).
Take into account the protrusions and stiffeners on the walls|
Measure the height to the top shelf (and not to the ceiling of the chamber)|
Subtract the volume occupied by the fan (in No Frost models)|
Check the symmetry of the chambers (sometimes the freezer already has one sides)
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Example for a refrigerator Indesit DF 4180 W:
| Chamber | Depth (cm) | Width (cm) | Height (cm) | Volume (l) |
|---|---|---|---|---|
| Refrigerator | 50 | 55 | 120 | 330 |
| Freezer | 45 | 55 | 40 | 99 |
| Total | 429 | |||
The actual volume of this model is 380 liters. The difference of 49 liters (13%) is due to the thickness of the plastic walls of the drawers. and shelves.
4. Method No. 4: Online volume calculators
For quick calculations, you can use online services, which automatically calculate the volume based on the entered dimensions. Popular options:
- 🌐 Calc.ru — supports calculations for refrigerators with separate chambers.
- 🌐 Allcalc —allows you to specify the fill factor.
- 🌐 HozPrice —specialized calculator for household appliances.
Example of working with the calculator:
- Select the type of refrigerator (single/two-chamber).
- Enter external or internal dimensions (in cm).
- Indicate the number of chambers and availability No Frost.
- Get the result in liters, taking into account standard corrections.
⚠️ Attention: Online calculators often use average coefficients. For refrigerators with inverter compressor (for example, LG Inverter Linear) or vacuum insulation (like Panasonic NR-BN30A1), the error can reach 20%.
By volume|
By design|
By energy efficiency|
By brand|
5. Method No. 5: Estimation by the number of products
If you need to understand whether the volume of the refrigerator is enough for your family, use practical standards:
- 👨👩👧 1–2 person - 120–180 liters (for example, Birusa 101).
- 👨👩👧👦 3–4 people — 250–350 l (for example, ATLANT MXM 2835-90).
- 👨👩👧👦👧 5+ people — 400 l or more (for example, Samsung RF56A9671SG).
For an accurate calculation, use the table:
| Product | Volume per 1 kg (l) | Example |
|---|---|---|
| Meat/fish | 1.5–2 | 5 kg of meat = 7.5–10 l |
| Vegetables/fruits | 2–3 | 10 kg of potatoes = 20–30 l |
| Dairy products | 1–1.5 | 3 liters of milk = 3–4.5 liters |
| Drinks (bottles) | 0.5–1 | 24 bottles of 0.5 l = 12–24 l |
Example: a family of 4 people consumes per week:
- 5 kg of meat → 10 l,
- 15 kg of vegetables → 30–45 l,
- 5 l of milk + 2 kg of cheese → 7–10 l,
- 20 bottles of drinks → 10–20 l.
Total: 57–85 l only for food. Taking into account the reserve (30–50%), the optimal volume is 250–300 l.
6. Typical mistakes when determining volume
Many buyers face problems due to incorrect estimation of volume. Let's look at the most common ones:
- Ignoring the freezer compartment. The specifications often indicate the total volume, but if you only need the refrigeration part (for example, for fresh food), check the ratio. In the model BEKO GNE 114620 X out of 327 liters, the freezer accounts for 90 liters - that’s almost 30%!
- Not taking into account the freshness zone. In refrigerators with 0°C zone (for example, Liebherr CBNes 4855), this compartment can occupy up to 20% of the volume, but is not suitable for deep freezing.
- Confusion between gross and net. "Gross" volume includes walls and insulation, while "net" volume includes only usable space. The difference can reach 15–20%.
- Neglecting the height of the legs. In some models (for example Haier A3FE742CGJ), the legs are adjustable, and their maximum height (up to 5 cm) is not included in the usable volume.
To avoid mistakes, always check:
- 📏 Internal dimensions (not external).
- 🧊 Chamber ratio (60/40, 50/50, etc.).
- ⚡ Defrost type (No Frost "eats" up to 10% of the volume due to ventilation).
7. How volume affects other parameters of the refrigerator
The volume of the refrigerator is directly related to its energy consumption, noise level i price. Let's consider the dependencies:
| Volume (l) | Energy consumption (kW/year) | Noise level (dB) | Average price (thousand rubles) |
|---|---|---|---|
| 100–150 | 200–250 | 38–40 | 20–35 |
| 200–300 | 250–350 | 40–42 | 35–70 |
| 350–500 | 350–500 | 42–45 | 70–150 |
| 500+ | 500–700 | 45–48 | 150–300 |
Examples:
- Refrigerator POZIS RK-102W (100 l) consumes 220 kW/year and costs ~25 thousand rubles
- Model Samsung RB37J5240SA (367 l) - 380 kW/year and ~80 thousand rubles.
- Liebherr SBSes 7255 (541 l) - 550 kW/year and ~250 thousand rubles.
Advice: for to save energy, choose models with inverter compressor (for example, Hitachi R-VG430PUC6) - they are 20-30% more efficient with the same volume.
⚠️ Attention: Refrigerators with a volume of more than 400 liters often require separate socket grounding and may not fit into standard kitchen niches (depth 60 cm). Before purchasing, check minimum clearances for ventilation (usually 5 cm at the back and sides).
FAQ: Frequently asked questions about the volume of the refrigerator
What is the volume Is a refrigerator needed for a family of 3 people?
For a family of 3 people, the optimal volume is 250–300 liters. If you often freeze food (berries, meat), take a model with a freezer capacity of 80–100 liters (for example, ATLANT MXM 2809-80 with a 60/40 ratio). For a small kitchen, a narrow refrigerator with a height of 180–200 cm (for example, Indesit ITF 118 W 260 liters) is suitable.
Why is the volume indicated in the characteristics 300 liters, but in fact it holds less?
Manufacturers indicate total volume (including walls, shelves and drawers), and not useful. Actual capacity is 10–20% lower. In addition, in models with No Frost part of the space is occupied by a ventilation system, and in refrigerators with freshness zone (for example, BioFresh y Liebherr) there are additional compartments. To find out the exact usable volume, look in the passport for the item Net Volume.
How to measure the volume of a built-in refrigerator?
For built-in models (for example, Electrolux EBB 2600 SO) use internal measurements:
- Remove the facade and decorative panels.
- Measure the depth to the inner wall (not to the door).
- Please note that built-in refrigerators have reduced insulation thickness (fill factor - 0.6–0.7).
- Subtract the volume occupied by facade fasteners (usually 2–5 liters).
Example: if the external dimensions are 55x55x177 cm, and the internal ones are 48x45x150 cm, the actual volume will be ~324 l (and not 530 l according to external dimensions).
Is it possible to increase the useful volume of the refrigerator?
Yes, there are several ways:
- 🔄 Rearrange the shelves —in most models (for example, BEKO CNK 335120 X) they can be adjusted in height.
- 🧺 Use organizers —vertical containers for bottles or boxes for small products.
- 🧊 Optimize the freezer —replace bulky bags with vacuum containers.
- 🚪 Add door shelves —many refrigerators (for example, Gorenje NRK 6191 MC) support additional fastenings.
On average, these measures allow you to increase the useful volume by 10–15%.
What volume of the freezer is needed for winter supplies?
For freezing food for the winter (berries, mushrooms, meat), a freezer with a volume of 100–150 lis recommended. Calculate from the norm:
- 1 kg of berries = ~2 l of volume (including packaging),
- 1 kg of meat = ~1.5 l,
- 1 serving of soup = ~0.5 l.
Example: to stock 30 kg of berries, 20 kg of meat and 10 servings of soup you will need:
30 × 2 + 20 × 1.5 + 10 × 0.5 = 60 + 30 + 5 = 95 l.Optimal models: ATLANT M 7184-003 (140 l freezer) or Liebherr GP 1476 (154 l).