An electric meter measures the total kilowatt-hours (kWh) of electricity your home or business consumes. Your utility company reads it each billing cycle to calculate your charges. Analog meters use a row of rotating dials, while modern digital and smart meters show an LCD readout. Knowing how to read your own meter lets you track usage, catch billing errors, and understand what's driving your electricity costs.
Key rule: Dials alternate direction — clockwise, counterclockwise, clockwise, etc. Always read the number the pointer has most recently passed (the lower number when between two digits). Read left to right to form the kWh value.
Interactive Analog Meter
Click "New Reading" to generate a random meter position, then practice reading it.
Practice Reading
What does the meter above read?
How to Read an Analog Dial Meter — Step by Step
Start at the leftmost dial (highest value). Note the direction arrow (↻ or ↺).
Record the number the pointer has most recently passed — the lower of the two adjacent numbers.
If pointer appears exactly on a digit, check the next dial to the right. If it hasn't passed zero, use the lower number.
Repeat for all 5 dials, reading left to right. Each dial represents one digit in the kWh reading.
Read the 5 digits together as a single number (e.g., 4-7-2-3-1 = 47,231 kWh).
Digital meters display the kWh total directly on an LCD screen — just read the number from left to right, ignoring leading zeros. Some meters cycle through multiple screens; the main kWh total is usually labeled kWh or KWHR.
Digital LCD Meter Display
Reading Your Digital Meter
Press the meter's display button to cycle through screens. Look for the screen labeled kWh, KWHR, or Total Energy. This is your main consumption reading.
Record all digits including the decimal. A reading of 04728.3 means 4,728.3 kWh total consumed. Leading zeros are padding — ignore them.
Many meters cycle through: total kWh usage, peak demand (kW), time-of-use registers, and meter diagnostics. Utility workers read all registered values.
Subtract your last bill's meter reading from today's reading to find kWh used since the last reading.
Common Digital Meter Screens
| Screen Label | What It Shows | Unit |
|---|---|---|
| kWh / KWHR | Total energy consumed (main reading) | kilowatt-hours |
| kW / DEMAND | Current or peak power demand | kilowatts |
| TOU 1 / TOU 2 | Time-of-use peak and off-peak registers | kWh each period |
| kWh DEL | Energy delivered from grid (net metering) | kilowatt-hours |
| kWh REC | Energy received / exported to grid (solar) | kilowatt-hours |
| V / VOLTS | Line voltage diagnostic screen | volts |
| ID / METER | Meter serial/identification number | — |
Smart meters transmit readings automatically to your utility via wireless communication. They cycle through multiple data screens and often support time-of-use billing and net metering for solar customers. Your utility's app or web portal usually shows real-time usage data.
Smart Meter Screens
Click a screen to see its reading. Smart meters cycle through these automatically.
Net Metering (Solar Customers)
Energy flowing from the grid to your home. Increases when you consume more than your solar produces — nights, cloudy days, or heavy usage periods.
Energy flowing from your solar panels back to the grid. Increases when solar generation exceeds your consumption — midday on sunny days.
kWh Delivered − kWh Received = net consumption. Your bill is calculated on this net figure. If net is negative, you have a credit with your utility.
Smart meters communicate every 15 minutes or hourly. Your utility's app often shows live power draw in kW, so you can spot high-consumption appliances running unexpectedly.
kWh Usage & Cost Calculator
Enter two meter readings to calculate energy usage and estimated cost
Understanding kW vs kWh: Demand Charges
Instantaneous rate of energy use. Running a 1,500W space heater uses 1.5 kW right now. Demand charges on commercial bills are based on your peak kW during the billing period — often the highest 15-minute average.
Total energy consumed over time. Running that 1.5 kW heater for 2 hours = 3 kWh. Residential bills are almost always based on total kWh used. Your meter tracks the running total since it was last reset.
Some utilities charge different rates for peak hours (typically 4–9 PM weekdays) vs. off-peak hours. Smart meters track kWh in separate TOU registers. Shifting usage to off-peak times (running dishwasher overnight) reduces bills.
How to Read an Electric Meter
Every home and business connected to the electrical grid has an electric meter that records total energy consumption in kilowatt-hours (kWh). Your utility company reads this meter each billing cycle to calculate your charges. Being able to read your own meter lets you verify bills, track usage trends, and catch unusually high consumption before the bill arrives.
Reading an Analog Dial Meter
Older analog meters use five rotating dials, each numbered 0–9. The key challenge is that adjacent dials spin in opposite directions — the first clockwise, the second counterclockwise, and so on. This is because each dial is mechanically geared to the one before it, reversing direction with each gear step.
To read an analog meter: start with the leftmost dial and record the number its pointer has most recently passed. When the pointer sits between two numbers, always take the lower one. The exception is when the pointer appears to land exactly on a digit — look at the dial to its immediate right; if that dial has not yet passed zero (i.e., its pointer is between 9 and 0), reduce the number on your current dial by one. Read all five dials from left to right to form a five-digit kWh value.
Reading a Digital or Smart Meter
Digital meters display the total kWh on an LCD screen, making them far simpler to read. Just record the number shown — leading zeros are padding and can be ignored. Many meters cycle through several screens by pressing a button: the main screen shows total kWh (labeled kWh or KWHR), while additional screens may show peak demand, time-of-use registers, current voltage, or the meter's serial number.
Smart meters function the same way visually, but they also transmit readings automatically to the utility every 15 to 60 minutes. Your utility's online portal or app usually shows your near-real-time usage in kWh or kW, making it easy to identify which hours of the day drive the most consumption.
Calculating Your Usage and Cost
To find how many kWh you used between two readings, subtract the earlier reading from the later one. For example, if your meter read 4,728 kWh last month and reads 5,248 kWh today, you consumed 520 kWh. Multiply by your utility's rate per kWh (found on your bill — typically between $0.10 and $0.18 in the United States) to estimate the energy portion of your bill. Note that most bills also include fixed charges, taxes, and delivery fees that are separate from the per-kWh rate.
Net Metering for Solar Customers
Homes with solar panels use a bidirectional meter that tracks both energy drawn from the grid and energy exported back. The kWh Delivered register counts what you import; the kWh Received register counts what you export. Your utility bills you on the net difference. If your solar panels generate more than you consume during a billing period, many utilities provide a bill credit for the excess at a set compensation rate.
Tips for Monitoring Your Usage
Take a meter reading at the same time each month (before the utility reads it) to verify your bill is accurate. If a reading seems unusually high, check for appliances left running, HVAC systems working harder than expected, or faulty equipment. Smart meter portals often let you view hourly usage graphs, which pinpoint exactly when and where consumption spikes. Comparing your kWh per day across months quickly reveals seasonal patterns from heating and cooling loads.
FAQ
Is this electric meter guide free?
Yes, completely free. The interactive meter guide, practice mode, and kWh calculator all run entirely in your browser with no signup, no account, and no data sent to any server.
Is my data private?
Yes. No personal data is entered or collected. All calculations run locally in your browser. Your meter readings never leave your device.
Why do analog meter dials alternate directions?
Each dial on an analog electricity meter is driven by a gear connected to the one before it. Because each gear reverses the rotation of the next one, adjacent dials turn in opposite directions — alternating between clockwise and counterclockwise. You must know the direction for each dial to read it correctly.
How do I read an analog electric meter with 5 dials?
Read the dials from right to left. For each dial, record the number the pointer has most recently passed (the lower number if it is between two digits). The exception is when the pointer appears to be exactly on a digit — check the dial to its right: if that dial has not yet passed zero, take the lower number. Reading all five dials left to right gives you the meter value in kWh.
What does kWh mean on an electric meter?
kWh stands for kilowatt-hour, the standard unit of electrical energy. One kWh is the energy used by a 1,000-watt (1 kW) appliance running for one hour. A typical US household uses about 900 kWh per month. Your utility bill charges you per kWh consumed, which you can calculate by subtracting your last meter reading from your current reading.
What is the difference between kW and kWh?
kW (kilowatt) is a measure of power — how fast energy is being used at any instant. kWh (kilowatt-hour) is a measure of energy — the total amount consumed over time. Demand charges on commercial bills are based on peak kW demand. Residential bills are almost always based on total kWh consumed during the billing period.
How do I calculate my electricity cost from meter readings?
Subtract your previous reading from your current reading to get kWh used. Multiply kWh by your rate per kWh (found on your utility bill — typically $0.10–$0.18 in the US). Add any fixed charges or fees listed on your bill. The usage calculator on this page does this automatically once you enter both readings and your rate.
What is a smart meter and how is it different from a digital meter?
A basic digital meter displays kWh on an LCD screen but must be read manually by a utility worker. A smart meter transmits readings automatically to the utility via wireless communication, enabling real-time usage data, time-of-use pricing, and remote diagnostics. Smart meters often cycle through multiple screens showing total kWh, peak demand, and time-of-use data.
What is net metering on a solar electric meter?
Net metering tracks both electricity you consume from the grid and electricity you export back to the grid from solar panels. Your meter shows two registers: energy imported (kWh in) and energy exported (kWh out). You are billed only for the net difference. Some smart meters show a negative reading when you export more than you consume.