All Free Online Tools
45 tools across 7 categories — and growing.
Finance
8 toolsInflation Calculator
Calculate the real value of money over time using historical CPI data. Adjust for salary, future values, and purchasing power.
Inflation Calculator India
Calculate the inflation-adjusted value of the Indian Rupee (₹). Check purchasing power from 1980–2025 with India CPI context and RBI target rates.
Salary Inflation Calculator
Check if your salary is keeping up with inflation. Compare nominal vs real purchasing power with year-by-year breakdown.
Future Value Inflation Calculator
Calculate how much money you'll need in the future to match today's purchasing power. Supports any currency and custom inflation rate.
Past Inflation Calculator
Find out what money was worth in any past year. Calculate historical purchasing power using US CPI data from 1980 to 2025.
SIP Calculator
Calculate SIP returns, maturity value, and wealth gain. Supports monthly SIP and lump sum investments with expected return rate.
EMI Calculator
Calculate monthly EMI for home loan, car loan, personal loan and education loan. Get total interest and payment breakdown.
Mortgage Calculator
Calculate monthly mortgage payments including principal, interest, property tax, insurance, PMI, and HOA fees with full amortization breakdown.
Agriculture
16 toolsFertilizer Calculator
25+ crops, 20+ fertilizers, Indian area units, split application schedule, cost optimizer. The most complete free fertilizer calculator.
NPK Calculator
Calculate fertilizer quantities from Nitrogen, Phosphorus, and Potassium requirements. Get Urea, DAP, MOP doses for any area.
Urea Calculator
Calculate Urea fertilizer dose per hectare, acre, or bigha based on nitrogen requirement. For rice, wheat, maize and 20+ crops.
DAP Calculator
Calculate DAP (Di-ammonium Phosphate 18-46-0) dose per hectare, acre, or bigha. Includes N contribution from DAP.
Crop Fertilizer Calculator
ICAR-recommended NPK doses for 25+ crops with split application schedule and cost estimate. Rice, wheat, maize, sugarcane, potato and more.
Fertilizer per Acre Calculator
Calculate Urea, DAP, MOP quantities per acre with bag count and cost. Enter N, P, K requirement and acres.
Fertilizer per Hectare Calculator
Calculate total fertilizer (Urea, DAP, MOP, SSP) for any number of hectares based on crop NPK requirements.
Fertilizer Blend Calculator
Mix any combination of fertilizers and see total N, P, K supplied, cost per hectare, and nutrient balance instantly.
Fertilizer Cost Calculator
Compare cost of DAP, SSP, NPK complex and other fertilizer routes side by side. Enter local prices to find the cheapest combination.
Lawn Fertilizer Calculator
Calculate how much granular fertilizer your lawn needs in lbs, bags, and cost. Covers 30-0-10, 16-4-8, Milorganite, Urea and more. US sq ft and acre units.
Liquid Fertilizer Calculator
Calculate liquid fertilizer oz per gallon, tank mixing ratios, and hose-end sprayer settings. Covers 20-20-20, Miracle-Gro, fish emulsion, kelp and more.
Dry Fertilizer Calculator
Calculate granular fertilizer quantity in lbs and kg, bags needed, and total cost. Supports 10-10-10, Urea, DAP, MOP, SSP and more. US and metric units.
Cattle Record Keeping
Track herd size, milk production, beef sales, feed and labor costs. Get monthly and annual profit for dairy, beef, or mixed cattle farms.
Goat Farm Profit Calculator
Calculate annual revenue, costs, net profit, and payback period for a goat farm. Supports meat, dairy, or mixed goat farming.
Pig Farm Profit Calculator
Calculate annual pig farm profit from sows, litter size, FCR, market weight, and selling price. Get profit per pig and payback period.
Drip Irrigation Calculator
Calculate daily water requirement, number of drippers, total flow rate, and irrigation duration for any crop. Supports acres, hectares, bigha. 18 India-specific crops.
Construction & Home
11 toolsPaint Calculator
Calculate how many litres of paint you need for walls, ceiling, or full room. Deducts doors and windows. Supports multiple coats.
Tile Calculator
Calculate tiles, grout, and materials needed for floor, wall, shower, ceiling, or backsplash tiling projects.
Brick Calculator
Calculate number of bricks, cement bags, and sand needed for any wall. Supports standard Indian, modular, and custom brick sizes.
Brick Calculator – Square Feet
Calculate bricks per square foot for any wall thickness. Get total bricks, cement, sand and cost. Standard Indian and custom brick sizes.
Boundary Wall Brick Calculator
Calculate bricks, cement and sand for compound/boundary wall construction in India. 4.5 and 9-inch wall options.
Paver Brick Calculator
Calculate pavers needed for patio, driveway, walkway or garden path. Enter area and paver size for count, sand and cost.
Concrete Calculator
Calculate how many bags of concrete you need for driveways, patios, and slabs. Enter dimensions, depth, and bag size to get instant results with cost estimates.
Drywall Calculator
Calculate drywall sheets, joint compound, and tape needed for your project with waste allowance and cost estimates.
Roofing Calculator
Calculate roofing squares, material quantity, and project cost. Accounts for roof pitch, material type, and waste allowance. Supports asphalt, metal, tile, and composite.
Flooring Calculator
Calculate how many boxes of flooring materials you need for any room. Supports laminate, vinyl plank, hardwood, tile, and carpet with cost estimates.
Lumber Calculator
Calculate board feet and lumber needed for decks, framing, joists, and fencing. Supports various lumber sizes, spacing options, and cost estimation.
Health & Fitness
2 toolsPerimenopause Age Calculator
Find out what perimenopause stage you are in. Enter age, menstrual status, and symptoms to estimate your stage and years to menopause.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) and get personalized calorie and macro targets for fat loss, muscle gain, or maintenance.
Electrical
2 toolsElectrical Load Calculator
Calculate total home or office electrical load in kW and kVA. Get circuit breaker size, monthly units, and electricity bill estimate. Single and three-phase support.
Wire Gauge Calculator
Calculate the correct AWG wire gauge for electrical circuits. Based on current (amps), voltage, and distance. Supports 12V, 24V, 120V, 240V systems.
DIY & Landscaping
2 toolsMulch Calculator
Calculate cubic yards and bags of mulch needed for landscaping. Supports bark, wood chips, compost, pine straw, and rubber mulch with cost estimates.
Wood Calculator
Calculate wood volume in cubic feet, board feet, and cords. Estimate weight for lumber, hardwood, plywood, and firewood. Perfect for woodworking and firewood ordering.
HVAC & Climate
4 toolsAC Unit Size Calculator
Calculate the correct air conditioner tonnage and BTU needed for your space based on square footage, climate, and insulation.
Insulation Calculator
Calculate how many batts, rolls, or bags of insulation you need. Fiberglass, cellulose, spray foam, and mineral wool support with R-value recommendations.
Furnace BTU Calculator
Calculate the furnace size and BTU heating capacity needed for your home. Based on square footage, climate zone, and insulation level.
Ductwork Calculator
Calculate HVAC duct size, diameter, and airflow (CFM) for round and rectangular ducts. Get friction loss estimates and proper duct sizing.