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Calculators & Planning Tools
Use your own measurements, appliance data and tariff. Each tool shows its assumptions so you can review the result before making a purchase or electrical decision.
Water & pumps
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Related guides
ELECTRICITY COST PLANNING
Electricity Bill Calculator
Use billed units, meter readings or appliance usage. Enter your flat or slab tariff and see the energy charge, other charges and credits in one breakdown.
Calculate your electricity bill →Use this hub to choose from the free calculators available here. The tools cover planning questions involving water tanks, pumps, electrical loads, appliance costs, EV charging, backup power and CCTV storage.
See Vukar Automation's free water and electrical planning tools. Choose the calculator that matches the decision you need to make.
Choose the tool for your decision
Start with the question you need to answer, then open the relevant calculator shown by the hub. Keep the source values, units and practical limits for your own installation ready before entering data.
Understand the result
Each calculator is a planning aid for its stated purpose. Read its inputs, output labels, assumptions and warnings before using the result. A planning estimate is not a quotation, approval, installation design or guarantee of savings or performance.
Verify before acting
Check important inputs against bills, equipment labels, drawings or site measurements. For electrical, structural, water-system, CCTV or purchase decisions, ask the appropriate qualified professional or supplier to confirm the final design, compatibility, capacity and applicable requirements.
Compare electrical equipment with useful inputs and realistic running costs
Use exact model data, measured or comparable energy inputs and complete quotations instead of headline savings or one specification.
Compare the same job and the complete cost
Start with the required duty and actual installation. For running-cost comparisons, use comparable energy inputs, the expected operating pattern and the applicable tariff. A lower purchase price or a larger number on one specification does not, by itself, settle the whole decision.
Keep power, energy and performance separate
Motor output power is different from electrical input power. Running-current estimates also need efficiency, power factor, voltage and phase. For cooling equipment, compare exact model codes, required cooling duty and label periods; do not assume rated input is the power used every hour.
Treat a calculator result as a scenario
A useful estimate makes its inputs clear and shows what changes the result. Confirm final prices, installation scope and current equipment documentation before buying. Historical product examples are not current price, stock or annual-bill promises.
Questions before choosing
Which motor figures help me estimate electricity use and current?
Use motor output power, efficiency, power factor, supply voltage and phase as separate inputs. The current motor calculator uses these details to estimate electrical input and running current. This helps compare equipment on the job it must perform rather than on HP alone. Start with nameplate or project-specific values, check the units and have starting, duty and installation requirements reviewed for the final selection.
How can I make a useful running-cost comparison between pumps?
Compare both pumps for the same daily water job and required head, using supported input-power data or suitable measurements, fill time or runtime, and your energy tariff. The current pump guide recommends checking flow and input at the actual duty. Put those inputs into the cost calculator and keep the assumptions beside the result. This gives you a practical comparison for your installation and operating pattern.
How do efficiency and power factor help with equipment selection?
Efficiency helps relate the motor’s required output to its electrical input, while power factor is another input used with voltage and phase to estimate current. Keeping both values separate makes the calculation more useful. Use documented or measured values for the actual project. For a power-factor correction proposal, the current guide calls for measurements at normal loads and a reviewed design covering the site’s electrical conditions.
What should I compare when choosing a higher-star AC?
Compare the exact model codes, label periods, suitable cooling duty and matching energy information, along with the complete installed prices. Then apply a consistent room-use pattern and your tariff to estimate the running-cost difference. This helps you judge whether the extra purchase cost is worthwhile for your use. Ask for comparable annual-energy labels or measured average power before calculating savings and simple payback.
How do I work out a simple payback for a more efficient option?
Divide the extra installed purchase cost by positive estimated annual running savings on a comparable basis. Keep the energy, use and tariff assumptions visible so you can see what changes the result. This gives a useful first comparison between quotations. Consider repairs, financing and future tariff changes separately when they matter to the decision, and use current exact-model information before ordering.
Which label details should I keep with an AC quotation?
Keep the full model code, star rating and applicable label period with the quotation and energy data. This helps you compare the unit being offered on the right basis. The current buying guide identifies its example units as 2025-label models; a current purchase should use the delivered model’s own label information. Ask the seller to confirm the exact unit and supporting documentation before you finalise the order.
How do I choose an AC size for my room?
Have the room’s actual cooling requirement assessed, then compare exact models suited to that duty. Use the same room conditions, temperature setting and expected use when comparing efficiency and running cost. This keeps the size decision connected to the job the AC must do. Ask the supplier to explain the capacity recommendation and include the required installation scope in the quotation.
Which power figure is useful for estimating an inverter AC’s running cost?
Use comparable annual-energy information or measured average running power for the intended conditions. Inverter operation varies compressor speed, so these inputs are more useful than treating rated input as a constant for every operating hour. Apply the same use pattern and tariff to both models. Keep the source of the energy data with the calculation so the comparison can be checked against your intended use.
What should I check when choosing an inverter battery?
Match the inverter’s approved battery voltage, type and capacity range, then check the number of batteries, physical dimensions and service space. Ask for expected backup at your actual load and read the written warranty stages. The current guide’s exact 150 Ah examples have different cases and terms, which makes those checks useful even when Ah matches. Follow the approved charging and care instructions for the chosen combination.
How can I compare online offers with confidence before ordering?
Keep the exact model and variant beside the current price, delivery location, installation scope and written terms. List accessories, piping, electrical work and service requirements separately where relevant. This helps you compare the complete installed job instead of a headline price. Use the official product information and confirm availability with the seller; for VUKAR panel selection, share your motor and control requirements through the verified Contact page.
Explore the relevant guides
Water Pump Electricity Cost Buying Guide
Motor Output, Input Power & Current Calculator
3-Star vs 5-Star AC Buying Guide