About this tool
Estimate a room’s cooling-capacity requirement from the size and condition assumptions provided. Use the result as a starting point for discussing an installation with a qualified supplier who can assess the actual room.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Work with Room Length (Feet); Room Width (Feet).
- Floor & Sun Exposure: choose from Ground / Middle Floor (Shaded Roof); Top Terrace Floor / West-Facing Direct Sun (+20% Heat Load).
- Review Room Floor Area; Exact Cooling Load; Recommended Market Size in the result breakdown.
Benefits
- Compare room-size and heat-load assumptions.
- Prepare clearer questions before seeking an equipment quotation.
Who should use this tool?
- People researching an AC size.
- Households reviewing a room-cooling estimate.
How to use
- Complete the labelled fields for your scenario, including Room Length (Feet); Room Width (Feet). Use the units shown beside each field.
- Choose Floor & Sun Exposure to match the situation you want to check.
- Select Calculate / Run Tool and review Recommended AC Capacity for Indian Summer and Room Floor Area; Exact Cooling Load.
- Check the assumptions and limitations below. Adjust a value to compare scenarios, then copy or download the result you need.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| 14×12 ft Bedroom (168 sq.ft, Middle Floor → 1.5 Ton) | Room Length (Feet): 14Room Width (Feet): 12Floor & Sun Exposure: Ground / Middle Floor (Shaded Roof) | 1.5 Ton Inverter AC (Calculated Load: 1.53 TR / 18,327 BTU/hr) |
| 10×11 ft Study Room (110 sq.ft, Middle Floor → 1.0 Ton) | Room Length (Feet): 10Room Width (Feet): 11Floor & Sun Exposure: Ground / Middle Floor (Shaded Roof) | 1.0 Ton Inverter AC (Calculated Load: 1 TR / 12,000 BTU/hr) |
Reference and processing
ISHRAE / BEE Indian Residential Cooling Load Rule of Thumb · Listed applicability: 2025-2026
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Is cooling capacity the same as electrical consumption?
Cooling capacity and electrical input power describe different quantities. The power used depends on the actual unit, operating conditions and efficiency, not only the nominal tonnage.
Which inputs do I need for AC Tonnage Calculator for Indian Room Sizes & Top-Floor Heat Load?
Use Room Length (Feet); Room Width (Feet); Floor & Sun Exposure. The built-in examples show how those fields fit together.
What should I check before using this result?
1 Ton of Refrigeration = 12,000 BTU/hr (~3.517 kW cooling capacity). Check the assumptions and output against your intended task before relying on the result.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.