kVA to Watts Calculator

kVA to Watts Calculator – Kilovolt Amps to Watts Conversion

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Welcome to our kVA to Watts Calculator! This webpage provides a convenient tool for converting kilovolt-amperes (kVA) to watts, enabling you to understand the actual power usage in electrical systems. Whether you’re an electrical engineer, a technician, or simply curious about power efficiency, this Kilovolt Amps to Watts Conversion tool is here to help. Input the kVA and power factor, and let the calculator do the math to give you the real power in watts.

Result in watts:

What is a kVA to Watts Calculator?

A kVA to Watts calculator is a tool used to convert apparent power, measured in kilovolt-amperes (kVA), to real power, measured in watts (W). This conversion is necessary because electrical power systems consist of two components: apparent power and real power.

  • Apparent Power (kVA): It is the total power, which is a combination of both real power and reactive power. It represents the vector sum of the real power and reactive power and is measured in kilovolt-amperes (kVA).
  • Real Power (Watts): It is the actual power that performs useful work in an electrical system. It is the power that does the actual “useful” work, such as providing light, running motors, etc. Real power is measured in watts (W).

The relationship between kVA, real power (Watts), and the power factor (PF) is given by the formula:

P(W) = S(kVA) × 1,000 × PF

where: P(W) is the real power in watts, S(kVA) is the apparent power in kilovolt-amperes (kVA), PF is the power factor (a unitless value between 0 and 1).

The power factor is a measure of how efficiently the electrical power is being used. A power factor of 1 (or 100% power factor) means all the power is being used for useful work (100% efficient). A power factor less than 1 indicates that there is a portion of reactive power (unused power) in the system.

The kVA to Watts calculator takes the input of apparent power (kVA) and power factor (PF) and calculates the corresponding real power in watts (P(W)) using the formula mentioned above. It is commonly used in electrical engineering and power distribution applications to understand and analyze power consumption and efficiency in electrical systems.

How does this kva to watts calculator work?

This calculator helps you convert the electrical power measurement from kVA (kilovolt-amps) to watts (W). It’s essential because power comes in two parts: the “real” power that does useful work, like powering appliances, and the “reactive” power that doesn’t do any useful work but still affects the electrical system.

When you have a power factor of 1 (which means 100% power factor or unity), it’s like having all the power you need for your devices, and everything is working at its best. But in real-life situations, power factors are often less than 1, which means not all the power is used efficiently.

Here’s how you can use the calculator:

  1. You’ll see two input boxes and two labels: one for “kilovolt-amps” (kVA) and one for “power factor.”
  2. First, enter the value of your power in kilovolt-amps (kVA) into the “kilovolt-amps” input box. This is the total power, including both real and reactive power.
  3. Next, enter the value of your power factor into the “power factor” input box. The power factor is a number between 0 and 1, representing how efficiently the power is being used. Higher values mean better efficiency.
  4. Click the “Calculate” button.
  5. The calculator will then take your kVA and power factor, do some quick math, and give you the result in watts (W). This result is the actual power that’s available to do useful work.

For example, let’s say you have an electrical system that provides 10 kVA of power, and the power factor is 0.8. After clicking “Calculate,” the calculator will tell you that the actual power available for doing useful work (in watts) is 8,000

What is the formula for kVA to watts?

The formula for converting kilovolt-amperes (kVA) to watts (W) is:

P(W) = S(kVA) × 1,000 × PF

where:

  • P(W) is the real power in watts.
  • S(kVA) is the apparent power in kilovolt-amperes.
  • 1,000 is used to convert kilovolt-amperes to volts (1 kVA = 1,000 VA).
  • PF is the power factor (a unitless value between 0 and 1) representing the efficiency of the electrical system.

In simple terms, this formula calculates the real power in watts (P) by multiplying the apparent power in kilovolt-amperes (S) with the power factor (PF) and then multiplying the result by 1,000 to convert the kilovolt-amperes to watts.

The real power (in watts) is the actual power that performs useful work in an electrical system, while the apparent power (in kilovolt-amperes) represents the total power, including both real power and reactive power. The power factor reflects how efficiently the electrical power is being used, and a higher power factor means better efficiency and more usable power.

How much is 5 kVA in watts?

To convert 5 kVA (kilovolt-amperes) to watts, you can use this formula:

P(W) = S(kVA) × 1,000 × PF

where:

  • P(W) is the real power in watts.
  • S(kVA) is the apparent power in kilovolt-amperes (in this case, 5 kVA).
  • 1,000 is used to convert kilovolt-amperes to volts (1 kVA = 1,000 VA).
  • PF is the power factor.

Since the power factor is not provided, let’s assume a typical power factor of 0.8 for most electrical systems. Now, we can calculate the watts:

P(W) = 5 kVA × 1,000 × 0.8 = 4,000 W

So, 5 kVA is equal to 4,000 watts.

How much is 1 kVA in watts?

For converting 1 kVA (kilovolt-amperes) to watts, you have to use this formula:

P(W) = S(kVA) × 1,000 × PF

where:

  • P(W) is the real power in watts.
  • S(kVA) is the apparent power in kilovolt-amperes (in this case, 1 kVA).
  • 1,000 is used to convert kilovolt-amperes to volts (1 kVA = 1,000 VA).
  • PF is the power factor.

Since the power factor is not provided, let’s assume a typical power factor of 0.8 for most electrical systems. Keep it in mind that the power factor can be between 0.00 to 1.00. Now, lets calculate the watts:

P(W) = 1 kVA × 1,000 × 0.8 = 800 W

So, 1 kVA is equal to 800 watts.

The table of different power factors (PF)

Power Factor (PF)Angle (degrees)Description
1.0 (unity)0°Maximum power factor, all power is in-phase (100% efficient) and used for useful work.
0.925.84°High power factor, good efficiency, some reactive power is present.
0.836.87°Common power factor, moderate efficiency, noticeable reactive power.
0.745°Low power factor, reduced efficiency, significant reactive power.
0.653.13°Poor power factor, inefficient, a large portion of power is reactive and not utilized.
0.560°Worst power factor, highly inefficient, half of the power is reactive and not used for useful work.
0.090°Zero power factor, purely reactive power, no useful work is performed.

The table of different power factor kVA to Watts conversion (Power factor 0.8)

kVAWatts (P)
0.018 W
0.0216 W
0.0324 W
0.0432 W
0.0540 W
0.0648 W
0.0756 W
0.0864 W
0.0972 W
0.1080 W
0.1188 W
0.1296 W
0.13104 W
0.14112 W
0.15120 W
0.16128 W
0.17136 W
0.18144 W
0.19152 W
0.20160 W
0.21168 W
0.22176 W
0.23184 W
0.24192 W
0.25200 W
0.26208 W
0.27216 W
0.28224 W
0.29232 W
0.30240 W
0.31248 W
0.32256 W
0.33264 W
0.34272 W
0.35280 W
0.36288 W
0.37296 W
0.38304 W
0.39312 W
0.40320 W
0.41328 W
0.42336 W
0.43344 W
0.44352 W
0.45360 W
0.46368 W
0.47376 W
0.48384 W
0.49392 W
0.50400 W
1.00800 W
10.008000 W
100.0080000 W
500.00400000 W

The table of different power factor kVA to Watts conversion (Power factor 0.6)

kVAWatts (P)
0.016 W
0.0212 W
0.0318 W
0.0424 W
0.0530 W
0.0636 W
0.0742 W
0.0848 W
0.0954 W
0.1060 W
0.1166 W
0.1272 W
0.1378 W
0.1484 W
0.1590 W
0.1696 W
0.17102 W
0.18108 W
0.19114 W
0.20120 W
0.21126 W
0.22132 W
0.23138 W
0.24144 W
0.25150 W
0.26156 W
0.27162 W
0.28168 W
0.29174 W
0.30180 W
0.31186 W
0.32192 W
0.33198 W
0.34204 W
0.35210 W
0.36216 W
0.37222 W
0.38228 W
0.39234 W
0.40240 W
0.41246 W
0.42252 W
0.43258 W
0.44264 W
0.45270 W
0.46276 W
0.47282 W
0.48288 W
0.49294 W
0.50300 W
1.00600 W
10.006000 W
100.0060000 W
500.00300000 W

The table of different power factor kVA to Watts conversion (Power factor 0.9)

kVAWatts (P)
0.019 W
0.0218 W
0.0327 W
0.0436 W
0.0545 W
0.0654 W
0.0763 W
0.0872 W
0.0981 W
0.1090 W
0.1199 W
0.12108 W
0.13117 W
0.14126 W
0.15135 W
0.16144 W
0.17153 W
0.18162 W
0.19171 W
0.20180 W
0.21189 W
0.22198 W
0.23207 W
0.24216 W
0.25225 W
0.26234 W
0.27243 W
0.28252 W
0.29261 W
0.30270 W
0.31279 W
0.32288 W
0.33297 W
0.34306 W
0.35315 W
0.36324 W
0.37333 W
0.38342 W
0.39351 W
0.40360 W
0.41369 W
0.42378 W
0.43387 W
0.44396 W
0.45405 W
0.46414 W
0.47423 W
0.48432 W
0.49441 W
0.50450 W
1.00900 W
10.009000 W
100.0090000 W
500.00450000 W
kVa to Watt calculation

How many kVA is 1.5 ton AC?

To determine the kilovolt-amperes (kVA) rating of a 1.5-ton air conditioner, you need to know its cooling capacity in British Thermal Units per hour (BTU/hr) and the assumed power factor.

Typically, a 1.5-ton air conditioner has a cooling capacity of around 18,000 BTU/hr. To convert this cooling capacity to watts, you can use the following formula:

1 ton (cooling capacity) ≈ 3,516.85284 watts

So, for a 1.5-ton AC: Cooling capacity in watts = 1.5 tons * 3,516.85284 watts/ton = 5,275.27926 watts

Now, let’s assume a typical power factor of 0.8 for most electrical systems:

kVA = Watts / (1,000 * Power Factor) kVA = 5,275.27926 watts / (1,000 * 0.8) = 6.59409907 kVA

So, a 1.5-ton air conditioner has an approximate kVA rating of 6.59 kVA.

Note: All the content on this page and the “kVA to Watts Calculator” are validated by Kenan Baltaci, Bethanie Stadler and Lee Roberts. They checked the algorithm, performance and accuracy of this calculator.