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⚡ Quick Access - BOQ Estimators
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Full sprinkler coverage: head spacing, head count, branch/main pipe sizes. NFPA 13/IS 15105.
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Detailed genset sizing with temperature, altitude and harmonic derating. IS 10000/ISO 8528.
CalculateSize underground SWA/XLPE cables with ground temperature and grouping derating. IS 7098/BS 5467.
CalculateNumber of sprinklers, spacing, water demand and min pressure by area and hazard. NFPA 13/IS 15105.
CalculatePressure drop in ductwork including bends and fittings. Altschul-Tsal equation. ASHRAE/SMACNA.
CalculateSize gas distribution pipes from appliance kW loads. Converts heat demand to flow. IS 6044/IGC.
CalculateCompressed air ring main sizing with multiple outlets, pressure drop and receiver sizing. ISO 8573.
CalculateMulti-load transformer sizing with diversity/demand factors. IS 2026 standard kVA selection.
CalculateGenerator sizing with separate critical and non-critical load lists. Fuel tank for 8hr/24hr runs. IS 10000.
CalculateBuilding water supply: WSFU, peak flow, riser/branch pipe sizes and tank capacity. IS 2065.
CalculateFull SWA cable sizing for LV (415V), HT (11kV, 33kV) feeders with short circuit rating check.
CalculateAgent quantity, cylinder count and vent sizing for clean-agent suppression rooms. NFPA 2001/ISO 14520.
CalculateComplete hydrant system: flow, pressure, pipe sizing, pump duty, jockey pump and storage tank. NBC/IS 3844.
CalculateCHW flow rate, pipe size, pressure drop, insulation thickness and pump head. ASHRAE/CIBSE Guide C.
CalculateCapacity, water flows, evaporation loss, blowdown and makeup water requirement. CTI/ASHRAE.
CalculateSump and overhead tank sizing, dimensions, pump capacity and refill time. NBC India/IS 1172.
CalculateStack and branch sizing from drainage fixture units using Manning's equation. IS 5329/NBC India.
CalculateComprehensive cable sizing per IS 732/IS 1554/IS 7098 with full derating, designation and SC check.
CalculateEarth electrode resistance, combined resistance and conductor sizing per IS 3043 / IEEE 80.
Calculate3ϕ, 1ϕ, L-L fault currents, fault MVA, switchgear rating and busbar requirements. IS 13234/IEC 60909.
CalculateBill of Quantities for HVAC systems with INR rates. CPWD DSR 2023 / India market 2024-25.
Bill of Quantities for electrical systems with INR rates. CPWD DSR 2023 / India market 2024-25.
Bill of Quantities for plumbing & drainage systems. CPWD DSR 2023 / India market 2024-25.
Bill of Quantities for fire protection systems. CPWD DSR 2023 / India market 2024-25.
Combined MEP project cost estimate with CPWD DSR benchmarks and city factor. Printable report.
Calculate capacitor bank size (kVAr) to correct power factor to target. IS 732 / IEEE 1459.
CalculateSize a UPS / online inverter from connected load, PF and backup time. IS 16242 / IEC 62040.
CalculateDOL / Star-Delta / VFD starter and cable selection for 3-phase motors. IS 8544 / IEC 60947.
CalculateEstimate EV charging electrical load, cable and circuit breaker sizing. IS 17017 / IEC 61851.
CalculateSize Air Handling Unit - airflow, coil, fan kW and duct connection. ASHRAE 62.1 / NBC Part 8.
CalculateMinimum insulation thickness for pipes and ducts to prevent condensation and heat gain. IS 14164 / ASHRAE 90.1.
CalculateCalculate wet bulb, dew point, humidity ratio, enthalpy from DB and RH. ASHRAE Fundamentals.
CalculateSize liquid and suction refrigerant pipes for VRF and split AC systems. ASHRAE / Manufacturer guidelines.
CalculateSize kitchen grease trap / interceptor from meal count or fixture units. IS 5329 / NBC Part 9.
CalculateSize roof drain outlets, gutters and downpipes from rainfall intensity. IS 1742 / NBC Part 9.
CalculateTotal fire water storage requirement for combined hydrant + sprinkler demand. NBC Part 4 / IS 15105.
CalculateCalculate exit door and staircase width from occupant load. NBC Part 4 / NFPA 101.
Calculate pressurisation air quantity for smoke-free stairwells. NBC Part 4 / NFPA 92.
Size piped natural gas distribution network. PNGRB / IS 6044.
Calculate Net Positive Suction Head available (NPSHa) to prevent pump cavitation. IS 9137 / HI.
CalculateSize diesel fuel tank for generator based on run-hours. IS 10000 / NBC.
Maximum pipe support span and hanger reaction load. IS 1239 / MSS SP-69.
Calculate room SHR and verify AHU coil selection. ASHRAE Fundamentals.
Calculate EER, COP, IPLV and annual energy for chillers and AC units. ASHRAE 90.1 / BEE.
Maximum sprinkler head spacing and coverage area per hazard class. NFPA 13 / IS 15105.
Calculate fire load density and occupancy risk class. NBC Part 4 / ISO 1716.
Select gas pressure regulator from flow demand and pressure conditions. IS 6044 / IGC.
Ventilation air for gas meter rooms and boiler rooms to prevent accumulation. IS 6044 / NBC.
Select isolator type and static deflection for rotating equipment. ASHRAE / IS 2974.
Check slab load capacity for mechanical equipment. IS 875 Part 2 / NBC.
Size concrete inertia pad for rotating equipment. IS 2974 / ACI 351.
Minimum burial depth for underground pipes and cables. IS 5822 / NBC / IE Rules.
Check roof structural load for rooftop HVAC equipment. IS 875 / NBC Part 6.
P-trap seal and total depth for AHU drain pans from fan static pressure. Draw-through / blow-through.
CalculateSize dust extraction ducts to minimum transport velocity so material stays airborne. ACGIH.
CalculateSize a supply diffuser or return grille neck from airflow and target face velocity, with a noise check.
CalculateEstimate traction lift motor power and full-load current from rated load, speed and counterweight balance.
CalculateCirculation flow and filter area for a swimming pool from volume and required turnover time.
CalculateCommercial kitchen hood exhaust and make-up air from hood length, duty and style (IMC / NFPA 96).
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