Farm Machinery Cost Calculator
An 8 lakh tractor used 1000 hours a year for 10 years, burning 6 L/h of diesel at 90 per litre, costs 901.8 per hour to run.
901.8 per hour
- Fixed cost per year
- 140800
- Fixed cost per hour
- 140.8
- Variable cost per hour
- 761
- Depreciation per year (straight line)
- 72000
- Interest on average investment per year
- 52800
- Cost per hectare
- 1127.25 per ha
Step-by-step solution
- Depreciation = (P − S)/L = 72000; interest = (P + S)/2 × i = 52800
- Fixed/h = (72000 + 52800 + 16000) ÷ 1000 = 140.8
- Variable/h = fuel 540 + lube 81 + repair 40 + operator 100 = 761
Farm Machinery Cost Formula
Cost/h = (D + I + HIT)/H + fuel + lube + repair + labour
D = (P − S)/L, I = (P + S)/2 × i
Worked Example
A tractor costing 8 lakh used 1000 h a year for 10 years:
- Depreciation = (P − S)/L = 72000; interest = (P + S)/2 × i = 52800
- Fixed/h = (72000 + 52800 + 16000) ÷ 1000 = 140.8
- Variable/h = fuel 540 + lube 81 + repair 40 + operator 100 = 761
Fixed cost per hour: 140.8 · Variable cost per hour: 761 · Depreciation per year (straight line): 72000 · Interest on average investment per year: 52800 · Cost per hectare: 1127.25 per ha
GATE tip
GATE usually gives every rate; compute fixed cost per year first, divide by hours, then add the variable costs.
More Farm Machinery and Power Calculators
-
Field Capacity Calculator
TFC = W S / 10, EFC = TFC × field efficiency
W in m, S in km/h, capacities in ha/h
Example: A 2.5 m implement at 5 km/h with 80 % field efficiency: Effective field capacity = 1 ha/h.
-
IC Engine Performance Calculator
BP = 2πNT / 60,000 kW
BSFC = ṁ_f/BP; η_bth = BP/(ṁ_f × CV); η_mech = BP/IP
Example: A diesel engine giving 200 N·m at 2000 rpm on 9 kg/h of 42 MJ/kg fuel: Brake power BP = 41.8879 kW.
-
Drawbar Power Calculator
DBP = Draft × Speed
Draft = specific draft × width × depth; kW = kN × m/s
Example: A plough cutting 90 cm × 15 cm in soil of 7 N/cm² specific draft at 4.5 km/h: Drawbar power = 11.8125 kW.
-
Wheel Slip Calculator
Slip = (1 − V_a/V_t) × 100
tractive efficiency = drawbar power / axle power
Example: A tractor with a no-slip speed of 6 km/h moving at 5.1 km/h: Wheel slip = 15 %.
Frequently asked questions
Why is interest charged on the average investment?
The money tied up falls from P to S over the life, so (P + S)/2 is the average amount on which interest is lost.
How does annual use change cost per hour?
Fixed costs are spread over more hours, so higher use lowers the hourly cost until repairs start to rise.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Farm Machinery Cost Calculator. Retrieved October 29, 2026, from https://scientificconverters.com/calculators/machinery-cost-calculator/
IEEE
Scientific Converters, "Farm Machinery Cost Calculator," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/calculators/machinery-cost-calculator/