How much electricity does a Wi-Fi router consume per month: an accurate calculation and ways to save

Have you ever wondered how much power your Wi-Fi router consumes when it's running 24/7? In an age of rising electricity rates, even small devices can impact your bill. This is especially true if you have multiple access points, mesh systems, or powerful gaming routers in your home.

In this article we will figure out how to calculate Actual monthly router consumption, what determines energy consumption, and how to reduce it without losing connection quality. You'll learn which models are the most energy-efficient, which are real power guzzlers, and why devices continue to consume power even in standby mode.

Spoiler: the average home router uses between 3 to 15 kWh per year — this is equivalent to operating an A++-class refrigerator for 1–5 days. However, these figures can vary significantly depending on the model, load, and even the time of day.

How to Measure Router Power Consumption: 3 Proven Methods

Before we talk about numbers, let's figure out how measure accurately Your device's power consumption. After all, technical data often indicates maximum consumption, which is rarely achieved in practice.

Here are three reliable methods, from simple to complex:

• 🔌 Wattmeter (energy meter). Connect your router through this device for 24 hours—it will show your exact consumption in kWh. A high-quality wattmeter costs from 500 rubles, but it will come in handy for checking other devices.
• 📊 Smart socket. Models with energy metering function (for example, Xiaomi Mi Smart Plug or TP-Link Tapo P110) record consumption in real time and keep statistics. Convenient if the router is connected directly.
• 🔍 Calculation based on technical characteristics. Find the device's power (W) in the datasheet and multiply it by the number of hours of operation. For example, a 10W router will consume 7.2 kWh in a month (720 hours). But this method gives inflated figures!

Important: If your router supports PoE (Power over Ethernet), its consumption may differ from the specifications. In this case, use only a wattmeter or a smart plug.

How much electricity do popular router models consume?

Energy consumption depends on device class, the number of connected clients, and active features (such as VPN or parental controls). We tested several popular models in real-world conditions:

Please note: gaming routers (For example, ASUS RT-AX88U or NETGEAR Nighthawk) can consume up to 30–40 watts due to powerful processors and additional antennas. However, budget models for apartments rarely exceed 5–7 watts.

What does a router's power consumption depend on?

Even two identical routers can show different power consumption. It all depends on the following factors:

• 📶 Number of connected devices. Each new client (smartphone, laptop, smart light bulb) increases the processor load and, consequently, energy consumption. For example, a router with 10 connected devices will consume 20–30% more power than one with just one.
• 🔄 Active functions. VPN, parental controls, guest networks, IPTV—all of these make the router work harder. Especially power-hungry are features like QoS (traffic prioritization) and MU-MIMO.
• 🌡️ Ambient temperature. In hot weather, the router may become hotter, which will cause its fan (if equipped) to run more actively. The optimal temperature is 15–25°C.
• 🔌 Quality of food. If the network voltage is unstable, the router's power supply may operate less efficiently, increasing consumption.
• 🕒 Times of Day. At night, when traffic is minimal, many routers switch to a low-power mode. During the day, power consumption can increase by 10–15%.

Interesting fact: routers with external antennas usually consume more energy than models with built-in ones. For example, TP-Link Archer C6 (with antennas) "eats" 2-3 W more than TP-Link TL-WR841N (without external antennas) under the same load.

Why does the router consume power even without devices connected?

Even in idle mode, the router maintains a connection to the ISP (PPPoE, DHCP), updates the time via NTP, checks the firmware, and keeps the LEDs active. This is a minimal load, but it's always present.

How to Reduce Router Power Consumption: 7 Effective Methods

If you want to reduce your electricity bills, don't rush to buy a new router. In many cases, optimizing your settings or changing your usage habits is enough.

Here proven methods, which give the result:

• 🔄 Turn off your router at night. If you don't need internet between 11:00 PM and 7:00 AM, use a smart plug with a timer. This will save up to 30% energy. Just make sure your ISP isn't tying you to your MAC address (otherwise, you'll have to re-register every day).
• 📵 Reduce transmitter power. In the router settings (section Wireless or Wireless mode) reduce the signal level High on MediumThis will reduce consumption by 5-10%.
• 🛑 Turn off unnecessary features. Turn off the guest network if no one is using it and deactivate it WPS (It not only wastes energy, but also reduces safety).
• ⚡ Replace the power supply. If your router is powered by an external adapter, check its wattage. Manufacturers sometimes include over-powered adapters (for example, 12V/2A instead of the required 12V/1A). Replacing it with a less powerful (but still sufficient!) adapter will reduce consumption.
• 🔄 Update the firmware. Modern software versions often optimize power consumption. For example, in firmware Keenetic After updating to version 3.6, a mode appeared Eco Mode.
• 🌐 Switch to a wired connection. If your devices support Ethernet, use a cable instead of Wi-Fi. This will reduce the load on the router's wireless module.
• ☀️ Move the router to a cool place. Overheating causes the device to work harder. Avoid direct sunlight and placing it near radiators.

Warning: Not all routers support power saving modeFor example, MikroTik this function does not exist in principle, but ASUS it can be called AiProtection → Energy Saving.

Is an Energy-Efficient Router Worth Buying? Cost Comparison

If your current router is consuming a lot of power, it might be worth considering replacing it. But Will the investment be worth it?? Let's count.

Let's say you have an old router. D-Link DIR-300 (10W) and you are considering purchasing TP-Link Archer C50 (5 W). The difference in consumption is 5 W/h or ~3.6 kWh per month. At a rate of 5 ₽/kWh, the savings will be 18 rubles per month or 216 rubles per year.

The cost of a new router is about 3,000 rubles. This means it will only pay for itself in 14 years old! Conclusion: replacement for the sake of energy savings only makes sense if:

• 💰 Your current router consumes more than 15 W (for example, game models).
• ⚡ You plan to update your device for other reasons (weak signal, lack of Wi-Fi 6, etc.).
• 🌍 You care about eco-friendliness, not just saving money.

The alternative is to consider mesh systems. For example, TP-Link Deco E4 (a set of 3 devices) consumes a total of ~15 W, but covers a larger area than one powerful 25 W router.

Myths about router power consumption

There are many misconceptions online about how routers use electricity. Let's explore the most common myths and the truth behind them.

Myth 1: "The router consumes more power if many devices are connected to it."

Is it true: The number of connected devices affects the load, but not linearly. For example, 10 smartphones in standby mode will produce less load than one laptop downloading torrents. The main thing is active traffic, not the number of clients.

Myth 2: "Turning off your router at night is harmful—it will break faster."

Is it true: Modern routers are designed to withstand thousands of on/off cycles. It's much more damaging to them. constant overheating or voltage surges. But the capacitors in the power supply actually "age" faster when operated 24/7.

Myth 3: "The more expensive the router, the more economical it is."

Is it true: The price depends on the functionality, not on energy efficiency. For example, a budget Xiaomi Mi Router 4A (3-4 W) more economical than the flagship ASUS RT-AX88U (20-25 W). Don't look at the brand, but at technical specifications.

Myth 4: "The router consumes as much power as a smartphone charger."

Is it true: A phone charger (5V/2A) consumes ~0.1 W when idle, while a router consumes between 3 and 15 W. The difference is 30–150 times!

Why do some routers get hot even without load?

This is normal for models with powerful processors (for example, on chips Broadcom BCM4908 or Qualcomm IPQ8072). They are designed for heavy loads and can reach temperatures of up to 60–70°C. As long as the temperature does not exceed the permissible limits (specified in the data sheet), there is no need to worry.

How to calculate the cost of electricity for a router in your region

To find out how much you spend on a router per month, use this simple formula:

Cost (₽/₴) = Router power (W) × 24 (hours) × 30 (days) × Tariff (₽/kW h) ÷ 1000

Example for a router Keenetic Giga (6 W) at a tariff of 5 ₽/kWh:

6 × 24 × 30 × 5 ÷ 1000 = 21.6 rubles per month.

Please note that electricity rates vary by region and meter type:

• 🏠 Single-tariff meter: usually 3–6 ₽/kW h (depending on the region of the Russian Federation).
• ⚡ Two-tariff meter: During the day, 4–7 ₽/kWh, at night, 1–3 ₽/kWh. In this case, it is advantageous to postpone "heavy" tasks (such as firmware updates) until nighttime.
• 🌍 Ukraine: The residential tariff is ~2.64 UAH/kWh (as of 2026), but with limits. Exceeding the limit costs 5–7 UAH/kWh.

For an accurate calculation, check your tariff on your receipt or in your electricity supplier's personal account.

⚠️ Please note: Electricity rates may vary depending on the season, region, and political situation. For up-to-date information, please refer to your provider's official website.

FAQ: Frequently asked questions about router power consumption

🔌 How much power does a router consume in standby mode?

Even without active connections, the router consumes 30–50% of maximum powerFor example, a 10W device will consume 3–5W when idle. This is due to maintaining a connection to the ISP, indicators, and background processes.

💡 Is it okay to completely turn off your router every day?

Yes, but keep two things in mind:

1. If your provider binds you to a MAC address, you will have to re-register after each connection (or clone your MAC).
2. Some devices (such as IP cameras or smart speakers) may lose connection and require reconnection.

The best option is to turn off the router for 6–8 hours at night when it is not needed.

⚡ Which router is the most energy-efficient in 2026?

The leaders in energy efficiency among popular models are:

• Xiaomi Mi Router 4A Gigabit Edition — 3–4 W;
• TP-Link TL-WR841N — 4–5 W;
• Mercusys MR70X (Wi-Fi 6) — 5–6 W;
• Keenetic Lite — 4–5 W.

Among mesh systems, one stands out TP-Link Deco X20 — a set of 2 devices consumes ~10 W.

📉 Why is my router consuming more power?

Possible reasons:

• The number of connected devices has increased or the load has increased (for example, torrents, online games).
• New features included (VPN, parental control, IPTV).
• The router is overheating due to dust or poor ventilation.
• Firmware failure or malware infection (yes, routers can be hacked too!).

Try resetting to factory settings (Reset) and check the consumption again.

🔋 Can I power a router with a power bank?

Technically yes, but:

• Most routers require stable power supply 12V/1A or 9V/0.6A, and the power bank outputs 5V. You'll need an adapter (boost converter).
• Autonomous operation is only possible for 2–4 hours (depending on the capacity of the power bank).
• Some routers (eg. ASUS or NETGEAR) may not turn on from a non-standard power source.

For long battery life it is better to use UPS (uninterruptible power supply) or special routers with battery support (for example, GL.iNet).