Utility Calculators
18+ Everyday tools for modern life
Utility calculators compute bills, measurements, and conversions: electricity bill (state-wise slab tariff), fuel trip cost (city-specific petrol/diesel/CNG/EV prices), BMI, discount pricing, percentage calculations, and unit conversions. India’s residential electricity tariffs vary from โน0/unit (Tamil Nadu’s first 100 units free) to โน10.19/unit (Maharashtra above 500 units) โ making a state-specific calculator essential.
๐ Utility Calculators โ Key Data
- Ministry of Power May 2026: India’s total installed power capacity: 950 GW+. Renewable share: 46%. Electricity consumption FY 2024-25: 1,736 billion units.
- PPAC June 2026: National average petrol: โน107.76/L. National average diesel: โน94.18/L. Total petroleum consumption: 222 MMT (FY 2024-25).
- CERC FY 2025-26: Average domestic electricity tariff: โน5.5/unit. Lowest: Tamil Nadu โน0 (first 100 units free). Highest: Maharashtra/Rajasthan upper slabs โน9โ10.19/unit.
- VAHAN Portal 2025: Total registered vehicles in India: 33 crore. EV penetration: 6.8% of new vehicle sales in FY 2024-25.
The most used calculator on any financial platform is often the electricity bill check after an unusually high bill, or a fuel cost estimate before a road trip. A 50-unit reduction in monthly electricity consumption saves โน200โ500/month depending on your state. CalcWise’s utility calculators cover electricity bills for all 28 states (FY 2025-26 SERC tariff), fuel trip costs across 8 cities, BMI, discount pricing, percentage arithmetic, unit conversion, tip calculator, and car maintenance cost.
Health & Fitness Calculators
Calculate your Body Mass Index and health status
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Calculate exact age in years, months, days, hours
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Mathematical Calculators
Calculate percentages, increase, decrease
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Travel & Transport Calculators
Calculate fuel expenses for trips and daily travel
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Bills & Utility Calculators
Calculate electricity consumption and bill amount
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Life Events Planning
Plan your dream wedding budget for India
PopularCalculate ideal retirement age and plan
Plan long-term car ownership costs
โ Frequently Asked Questions โ Utility Calculators
How do I calculate my electricity bill in India?
Your electricity bill = ฮฃ (units in each slab ร slab rate) + fixed/demand charge. Example for 300 units in Maharashtra (MSEDCL): 0โ100 units @ โน1.53 = โน153; 101โ300 units @ โน6.52 = โน1,304; Fixed charge โน110. Total = โน1,567. Use the CalcWise Electricity Bill Calculator โ select your state to get the exact FY 2025-26 SERC tariff automatically applied.
Which state has the cheapest electricity in India?
Tamil Nadu (TANGEDCO) has the cheapest residential electricity in India โ the first 100 units every month are completely free, and above that: 101โ200 units @ โน1.50/unit. A consumer using 200 units pays just โน178/month including fixed charges. Karnataka (Gruha Jyothi scheme) gives the first 200 units free for eligible households.
How much does a 500 km road trip cost in petrol?
At national average petrol โน107.76/L and 15 km/L mileage: fuel needed = 500/15 = 33.3L; cost = 33.3 ร โน107.76 = โน3,588. At 18 km/L (efficient car): โน2,990. Diesel at โน94.18/L and 22 km/L: โน2,140. CNG at โน80/kg and 27 km/kg: โน1,482. Use the Fuel Cost Calculator for specific routes and vehicle mileage.
How do I calculate BMI?
BMI = Weight (kg) รท Heightยฒ (mยฒ). For 70 kg, 1.70 m: BMI = 70 / 1.7ยฒ = 70/2.89 = 24.2 (Normal range: 18.5โ24.9). Indian-specific BMI cut-offs differ from global: overweight โฅ23, obese โฅ25 (WHO Asia-Pacific guidelines) โ lower than the global 25/30 thresholds due to higher metabolic risk at lower BMI in South Asians.
How do I calculate percentage increase in salary?
Percentage increase = (New salary โ Old salary) / Old salary ร 100. From โน50,000 to โน57,000: (57,000โ50,000)/50,000 ร 100 = 14% hike. To calculate new salary from a given % hike: New salary = Old salary ร (1 + hike%/100). Use the Percentage Calculator for instant computation.