Dubai Electricity and Water Bill Calculator
Estimate your monthly DEWA bill from the kWh and water you use, slab by slab, with fuel surcharge, meter charges and VAT. Advanced adds meter types, AC estimates, your own fuel surcharge and a second month to compare.
The month's kWh from your bill, or this month's meter reading minus last month's.
Monthly meter service charge. The meter type is shown on your bill.
Charged on every kWh and m³. Type the figure from your own bill for another month.
Used for the cost per day.
Slab-by-slab breakdown
| Charge | Used | Price (AED) | Cost (AED) |
|---|
How your bill is worked out
Slabs for electricity and water, then fuel surcharge, meter charges and 5% VAT.
- 1
Electricity slabs
3,000 kWh in 2 slabs
= AED 740.00 - 2
Water slabs
25 m³ in 1 slab
= AED 192.50 - 3
Fuel and meters
+ 207.50 fuel
+ 10.00 meters - 4
Add 5% VAT
1,150.00 × 1.05
= AED 1,207.50
Read more: the DEWA slab tariffs, the formula, a worked example and tips
DEWA (Dubai Electricity and Water Authority) bills electricity in kilowatt-hours (kWh) and water in cubic metres (m³) or imperial gallons (IG) each month. Electricity and water are charged in slabs: the first block of the month's use at the lowest price and each later block at a higher price. A fuel surcharge is added on every kWh and m³, plus a fixed monthly service charge for each meter, and 5% VAT goes on the total.
The formula
slab cost = units used in that slab × that slab's price
electricity = sum of the electricity slab costs
water = sum of the water slab costs
fuel surcharge = kWh × fuel price per kWh + m³ × fuel price per m³
before VAT = electricity + water + fuel surcharge + meter charges
bill = before VAT × 1.05
cost per day = bill ÷ days in the bill
Worked example
A home (residential) with Type 1 meters uses 3,000 kWh of electricity and 25 m³ of water (about 5,499 IG) in a 30-day bill, with the October 2026 fuel surcharge.
- Electricity: the first 2,000 kWh × AED 0.23 = AED 460.00, and the next 1,000 kWh × AED 0.28 = AED 280.00, so electricity is AED 740.00.
- Water: all 25 m³ are in the first slab, 25 × AED 7.70 = AED 192.50.
- Fuel surcharge: 3,000 kWh × AED 0.06 = AED 180.00, and 25 m³ × AED 1.10 = AED 27.50, so AED 207.50.
- Meter charges: AED 5 + AED 5 = AED 10.00.
- Before VAT: 740.00 + 192.50 + 207.50 + 10.00 = AED 1,150.00. VAT: 1,150.00 × 5% = AED 57.50.
- Bill: 1,150.00 + 57.50 = AED 1,207.50, which is 1,207.50 ÷ 30 = AED 40.25 a day.
Estimating kWh from your AC
AC kWh = AC units × tons × kW per ton × hours a day × days
1 ton = 12,000 BTU/h = 3.517 kW of cooling
Three 1.5 ton standard split units (1.3 kW per ton) running 14 hours a day use 3 × 1.5 × 1.3 × 14 = 81.9 kWh a day, or 2,457 kWh in 30 days. Add 10 kWh a day for everything else (300 kWh) and the month is 2,757 kWh. In winter at 4 hours a day the same AC uses 702 kWh.
DEWA tariffs
From DEWA's slab tariff page, checked on 13 October 2026. The slabs are per month.
| Use in the month | AED/kWh |
|---|---|
| 0 – 2,000 kWh | 0.230 |
| 2,001 – 4,000 kWh | 0.280 |
| 4,001 – 6,000 kWh | 0.320 |
| 6,001 kWh and above | 0.380 |
| Use in the month | AED/kWh |
|---|---|
| 0 – 10,000 kWh | 0.230 |
| 10,001 kWh and above | 0.380 |
| Use in the month | AED/m³ |
|---|---|
| First 27 m³ | 7.700 |
| Next 27 m³ (27 – 54) | 8.800 |
| Above 54 m³ | 10.120 |
| Use in the month | AED/m³ |
|---|---|
| First 45 m³ | 7.700 |
| Next 46 m³ (45 – 91) | 8.800 |
| Above 91 m³ | 10.120 |
| Charge | AED |
|---|---|
| Electricity fuel surcharge, October 2026, per kWh | 0.060 |
| Water fuel surcharge, October 2026, per m³ | 1.100 |
| Electricity meter Type 1, per month | 5.00 |
| Electricity meter Type 2, per month | 6.00 |
| Electricity meter Type 3, per month | 35.00 |
| Water meter Type 1, per month | 5.00 |
| Water meter Type 2, per month | 7.00 |
| VAT on all of the above | 5% |
Good to know
- The fuel surcharge changes every month, so two months with the same use can cost a little differently. Type the figure from your bill in Advanced.
- Summer bills are often far higher than winter bills because of air conditioning, and the extra kWh fall into the dearer slabs.
- Water in gallons or litres is converted to m³: 1 m³ = 219.969 imperial gallons = 1,000 litres.
- Your DEWA bill may also include charges collected for other bodies, which this calculator does not include.
An estimate for general information. Tariff checked on 13 October 2026 against https://www.dewa.gov.ae/en/consumer/billing/slab-tariff. Your actual bill comes from DEWA.
Common questions
How is a DEWA bill worked out?
DEWA charges electricity and water in slabs: the first block of kWh or cubic metres in the month is charged at the lowest price and each later block at a higher price. On top comes a fuel surcharge on every kWh and m³, a monthly meter service charge for each meter, and 5% VAT on the total. A home using 3,000 kWh and 25 m³ in a month pays AED 740.00 for electricity, AED 192.50 for water, AED 207.50 fuel surcharge and AED 10.00 meter charges, AED 1,150.00 before VAT and AED 1,207.50 with VAT.
What is the DEWA fuel surcharge?
A charge per kWh of electricity and per cubic metre of water, added to the slab price on all units used. It changes monthly. For October 2026 it is AED 0.060 per kWh and AED 1.100 per m³. In Advanced you can type in the figure for another month.
How many gallons are in a cubic metre?
DEWA bills often show water in imperial gallons (IG). One cubic metre is 219.969 IG, so 1,000 IG is about 4.55 m³ and the first residential water slab of 27 m³ is about 5,939 IG. 1,000 litres is exactly 1 m³.
Is VAT charged on DEWA bills?
Yes. 5% VAT applies to the electricity and water charges, the fuel surcharge and the meter service charges, and this calculator adds it to the total.
What is the DEWA meter service charge?
A fixed monthly charge for each meter, set by meter type. Electricity meters are AED 5 (Type 1), AED 6 (Type 2) or AED 35 (Type 3) a month, and water meters AED 5 (Type 1) or AED 7 (Type 2). The meter type is shown on your bill.
Related calculators
Made by Zulu Calculator, part of AlphaZulu LLC. Formulas are shown in full and rule figures are checked against official sources; see how we build calculators.