🏠

Rooftop Area Calculator

Roof shape, dimensions, obstacles, access space, shading aur panel size se usable rooftop area, panel fit, maximum solar kW, generation, roof load aur target-system feasibility estimate karein.

Rooftop Details Bharein

Roof Shape aur Dimensions

Measurement Unit Feet ya metreFeetMetre

Roof Shape Area formulaRectangleSquareTrapezoidL-Shape / Two SectionsThree Rectangular Sections

Section 1 Length / Side A Selected unit

Section 1 Width / Height Selected unit

Section 2 Length / Side B L/trapezoid

Section 2 Width L-shape

Section 3 Length Multi-section

Section 3 Width Multi-section

Roof Tilt Degrees

Obstacle Area Tank, stairs, etc.

Setback + Walkway Reserve Percentage

Shading/Orientation Usability Percentage usable

Solar Panel Layout

Panel Orientation LayoutPortraitLandscapeAuto by Usable Area

Panel Rating Watt

Panel Length Metre

Panel Width Metre

Gap Between Panels Metre

Panel Weight kg/panel

Roof Load Limit kg/m2

Target Solar System kW

Generation aur Savings

Peak Sun Hours Hours/day

Solar System Loss Percentage

Monthly Consumption Units/month

Electricity Rate ₹/unit

Grid CO2 Factor kg/kWh

Please dimensions aur percentage fields check karein. Usable area positive aur panel dimensions zero se zyada honi chahiye.

Rooftop Solar Result

Maximum Solar Capacity14.85 kW27 x 550 W Panels | Rectangle Roof

GROSS AREA111.48 m2

USABLE AREA73.31 m2

PANEL COUNT27 Panels

ROOF USE95.0%

Gross Plan / Tilted Surface Area111.48 / 111.48 m2

Obstacle Area Deducted9.29 m2

After Access & Shading73.31 m2

Panel Footprint with Gap2.75 m2/Panel

Maximum Panel Count27 Panels

Target System Requirement10 Panels / 27.54 m2

Target Fit StatusTarget Easily Fits

Estimated Roof Loading10.18 kg/m2 - Within Limit

Generation Daily / Monthly59.40 / 1,782 Units

Electricity Need Coverage100.0%

Monthly / Yearly Bill Saving₹4,000 / ₹48,000

Estimated CO2 Reduction15.18 Tonnes/Year

Mobile aur desktop par direct single-page A4 PDF download hoti hai.

Rooftop Area Calculator ke features

Feet or Metre

5 Roof Shapes

Obstacle Deduction

Walkway & Shade

Panel Layout

Target Fit Check

Roof Load Estimate

Generation & Saving

Yeh tool rectangle, square, trapezoid, L-shape aur three-section rooftops ke initial solar-layout estimate ke liye hai. Tank, staircase, parapet access, walkway aur shaded areas ko deduct karke usable space dikhata hai. 1kW solar panel lagane ke liye kitni chhat chahiye aur kitni units banengi, yeh janne ke liye hamara guide 1kW Solar Panel Kitni Unit Banata Hai? padhein.

Gross aur usable area mein antar

Gross area roof ke measured plan dimensions se aata hai. Usable area mein obstacles subtract karke access/setback reserve aur shading usability apply hoti hai. Pure ghar ka bijli bill kam karne ke liye Ghar Ka Bijli Bill Kam Karne Ke Tarike guide zaroor dekhein.

⚡ Useful Solar & Energy Calculators on BijliBee

☀️ Detailed Guide: 1kW Solar Panel Kitni Unit Banata Hai? (Daily, Monthly & Yearly Calculation) 📐 Solar Panel Size Calculator (Find Required Solar kW Capacity) 💰 Solar Savings Calculator (Calculate Monthly Savings & Net Cost) 📈 Solar Payback Calculator (Check ROI & Investment Recovery) 💡 Detailed Guide: Ghar Ka Bijli Bill Kam Karne Ke 10 Asan Tarike (Proven Saving Tips) 🔌 Detailed Guide: Ghar Mein Sabse Zyada Bijli Khane Wale Appliances (Wattage & Units List) ⚠️ Detailed Guide: Bijli Bill Achanak Zyada Kyon Aa Raha Hai? (Karan Aur Bachat Ke Upay) ❄️ Detailed Guide: 1.5 Ton AC 1 Ghante Me Kitna Unit Khata Hai? ⚡ Home Load Calculator (Check Required Connection Load) 🔋 Inverter Backup Calculator (Calculate Battery Ah & Backup Hours) 🔌 State Wise Electricity Bill Calculator (Calculate Total Bill)

Rooftop Area Calculator FAQs

L-shape dimensions kaise bharein?

L-shape ko do non-overlapping rectangles maan kar Section 1 aur Section 2 ki length-width bharein. Calculator dono areas add karta hai.

Trapezoid ke fields kaise use hote hain?

Section 1 Length aur Section 2 Length parallel sides hain; Section 1 Width perpendicular height hai.

Panel count exact hoga?

Rectangle portrait/landscape mode mein row-column fit aur usable-area limit dono check hote hain. Complex roof ke liye area estimate hai; vents, parapet, row spacing aur shadow survey se count badal sakta hai.

Roof load result safe certification hai?

Nahi. Yeh panels ka distributed-weight estimate hai. Structure, wind load, mounting points aur waterproofing ke liye qualified structural engineer ki approval zaroori hai.

Kya mobile PDF chalegi?

Haan. Button Android print service open nahi karta; direct BijliBee branded single-page A4 PDF download karta hai.

Disclaimer: Yeh preliminary area aur solar-capacity estimate hai, structural certificate ya final layout nahi. Actual design parapet, setbacks, fire access, row-to-row shadow, tilt, wind zone, waterproofing, electrical safety, local rules aur site survey par depend karta hai. Installation se pehle qualified solar designer aur structural engineer se verification karein.

WRITTEN & REVIEWED BY

Satyam Kumar Yadav

Founder and Creator of BijliBee. Satyam electricity calculations, practical energy-saving tools aur simple Hinglish guides ko aam users ke liye aasan banane par kaam karte hain.