BD rates
Building Construction Cost
Full itemised cost — foundation to paint. Economy to premium grade.
All Calculators
104 free tools for Bangladesh and global users. No signup — calculations run entirely in your browser. Choose a category below or scroll through all tools.
104 tools across 12 categoriesConstruction & Material Estimators
Building cost, concrete, paint, tiles, floor materials, brick, plaster and steel rod calculators
Concrete Calculator
Volume, cement bags, sand & aggregate for any slab or column.
Paint Calculator
Litres, tin count & cost for any room. Multi-room & multi-coat.
Tile Calculator
Tile count, wastage & cost. All standard sizes — BD & global.
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Floor Material Calculator
Ceramic, marble, granite, vinyl, laminate, wood, epoxy & more.
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Brick & Mortar Calculator
Brick count, cement bags & sand — BD, UK, US, Indian brick sizes.
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Plaster Calculator
Cement & sand for internal, external or ceiling plaster.
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Steel Rod Calculator
MS rod weight in kg & tonnes. All diameters 8–40mm. Cost estimate.
Solar & Energy
Plan your solar setup — panels, savings and battery backup
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Solar Panel Calculator
Panel count, wattage & cost for your home or business. BD & global.
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Solar Savings Calculator
Monthly savings, payback period & ROI from solar installation.
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Solar Battery Backup
Battery size, backup hours & bank capacity for off-grid or hybrid.
Electricity Bill Calculator BD
Bangladesh electricity bill using BPDB 2024 slab rates.
Finance & Tax
EMI, income tax, salary, VAT and Zakat for Bangladesh
Global
EMI Loan Calculator
Monthly instalment, total interest & amortization for any loan.
2025-26
Income Tax Calculator BD
NBR 2025-26 slabs, exemptions, rebate, minimum tax & AIT.
Salary Calculator
Estimate monthly and yearly take-home salary after deductions.
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VAT Calculator BD
Add or extract 15% NBR VAT. All Bangladesh VAT rates supported.
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Zakat Calculator
2.5% Zakat on net wealth above Nisab. Cash, gold, savings & debts.
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FD / DPS Calculator
Fixed Deposit and DPS maturity amount, interest earned and monthly savings — all BD bank schemes.
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Compound Interest Calculator
Compound interest with yearly, quarterly, monthly or daily compounding. Inflation-adjusted real return.
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Gratuity Calculator BD
Bangladesh labour law gratuity — 30-day last salary per year for 5+ yrs. Instant breakdown for employers & employees.
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TDS & VDS Calculator BD
Estimate Bangladesh withholding tax (TDS) and VAT (VDS) on vendor bills. Fully NBR compliant.
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Prepaid Meter Calculator BD
Convert prepaid recharge amount to units (kWh) after utility charges. Supports DESCO, DPDC & BREB.
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L/C Cost Calculator
Estimate bank commissions, transmission, SWIFT, stamp duties and VAT for opening import or back-to-back L/Cs.
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Sanchayapatra Calculator
Calculate monthly, quarterly, and maturity returns on Bangladesh Savings Certificates. Estimates slabs and tax.
Health & Fitness
BMI, calories, BMR, water intake, sleep, pregnancy, ovulation, heart rate zones, 1RM and lean body mass — educational tools
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BMI Calculator
Body Mass Index with WHO classification and healthy weight range.
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Ideal Weight Calculator
Healthy weight range using Robinson, Miller and Hamwi formulas.
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Calorie Calculator
Daily calorie target for weight loss, maintenance or muscle gain.
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BMR Calculator
Basal Metabolic Rate — calories your body burns at rest.
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Water Intake Calculator
Daily water intake by weight, activity and climate.
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Sleep Calculator
Best bedtime and wake time based on 90-minute sleep cycles.
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Body Fat Calculator
Estimate body fat % using Navy method or BMI method.
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Macro Calculator
Daily protein, carbs and fat targets for your fitness goal.
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Protein Intake Calculator
Daily protein goal by bodyweight, activity and fitness objective.
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TDEE Calculator
Total Daily Energy Expenditure — maintenance calories with activity.
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Pregnancy Due Date Calculator
Estimate your baby's due date from LMP or conception date. Trimesters, milestones, key appointment weeks.
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Ovulation Calculator
Predict fertile window and ovulation day from your last period and cycle length.
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Waist-to-Height Ratio
Cardiometabolic risk screen using waist circumference divided by height. Supports cm and inches.
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One Rep Max Calculator
Estimate 1RM strength from reps and load using Epley, Brzycki, Lombardi and other formulas.
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Heart Rate Zone Calculator
Five personalised training zones from max heart rate. Choose Karvonen (HRR) or percentage-based method.
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Lean Body Mass Calculator
Lean mass in kg or lbs from weight and body fat %, or via Boer / James / Hume formulas.
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eGFR Calculator
Estimate kidney function (eGFR) using the CKD-EPI 2021 equation — creatinine, age, sex and race-free.
Travel & Vehicle
Trip cost, fuel expense and mileage calculators
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Trip Cost Calculator
Bus, train, plane, ship or car — full trip cost with passengers.
Fuel Cost Calculator
Estimate fuel expense from price, distance and mileage.
Mileage Calculator
Find vehicle mileage from distance covered and fuel used.
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Car Import Duty Calculator BD
Bangladesh car import duty, supplementary duty, VAT and advance income tax on reconditioned and new vehicles.
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CNG & LPG Conversion Cost Calculator
Estimate CNG and LPG conversion costs, compare Traditional and Sequential kits, check company-wise charges, find the best installers in Bangladesh, and calculate break-even period.
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CNG & LPG Calculator Hub
Full CNG & LPG resource hub — tank capacity, refill cost, fuel savings, break-even, cost per km, and FAQs.
Property & Land
Land area, plot size and rent split calculators for Bangladesh
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Land Area Converter
Katha, Bigha, Decimal, Sqft, Acre, Hectare — BD & global land units.
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Land Measurement Calculator
Calculate plot area from dimensions. Rectangle, triangle and L-shape.
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Plot Size Calculator
Net buildable area after RAJUK setbacks. FAR and floor area.
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Rent Split Calculator
Fair rent division for 2–8 roommates. Equal, by room or by income.
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Land Registry Calculator
Calculate land and apartment registration fees in Bangladesh — stamp duty, gain tax, local gov tax and VAT.
Education
GPA, CGPA, percentage conversion and study planning tools
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GPA / CGPA Calculator
SSC, HSC & University GPA on Bangladesh 4.00 and 5.00 scale.
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Percentage to GPA Converter
Convert exam percentage to GPA for SSC, HSC and university.
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Study Time Calculator
Plan exam preparation — subjects, pages and daily schedule.
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Weighted Grade Calculator
Calculate weighted class averages and required final exam target scores.
General Tools
Unit conversion, date difference, percentage and currency tools
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Age Calculator
Exact age in years, months, days. Next birthday countdown & zodiac.
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Unit Converter
Length, weight, temperature, area, volume, speed and data units.
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Date Difference Calculator
Days, weeks and months between two dates. Working days included.
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Percentage Calculator
Three modes: X% of Y, X is what % of Y, and % change.
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Currency Converter
BDT to USD, EUR, GBP, INR and 30+ currencies with live rates.
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Discount Calculator
Sale price after discount, discount %, or find original price.
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Internet Bill Calculator BD
Carnival, Link3, Amber IT, DOT, BTCL, Triangle, MiME & mobile data.
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AC BTU Calculator
Right-size your air conditioner — room BTU load from area, ceiling height, insulation, climate and occupancy.
Garment Costing Hub
Garment costing, CM, FOB, profit margin and export cost calculators for RMG industry
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Garment Costing Calculator
Full garment cost sheet — fabric, trims, CM, overhead and profit.
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CM Calculator
Cost of Making per garment — labour, overhead and target margin.
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FOB Calculator
Free On Board price from CM, material, agent commission and freight.
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Profit Margin Calculator
Gross and net profit margin, markup and break-even for garment orders.
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Export Cost Calculator
Total export cost — production, freight, insurance, duty and charges.
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SMV Calculator
Estimate Standard Minute Value from observed operation timings, ratings and allowances.
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Buyer Commission Calculator
Calculate agent commission and target supplier pricing for garment orders.
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Duty Drawback Calculator
Estimate flat rate NBR or actual customs duty drawback values for export orders.
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Garment Carton Calculator
Compute CBM volume, empty carton box weight, volumetric weight, and sourcing costs for apparel shipping.
Fabric & Textile Hub
GSM, fabric consumption, yarn conversion and fabric weight calculators for textile professionals
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GSM Calculator
Fabric GSM from weight and sample area. Verify supplier quality.
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Fabric Consumption Calculator
Fabric requirement per garment — pattern pieces, wastage and shrinkage.
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Yarn Converter
Convert yarn count between Ne, Nm, Tex, Denier and dtex units.
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Fabric Weight Calculator
Total fabric weight for a production lot from GSM, width and length.
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Sewing Thread Calculator
Calculate total sewing thread required (meters/yards) and number of cones for any garment order based on seam length, stitch type, and wastage.
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Warp & Weft Yarn Calculator
Estimate warp and weft yarn weight requirements and finished fabric GSM for weaving orders.
Production & IE Hub
Efficiency, SAM, manpower, line balancing, overtime, factory salary, production targets and capacity planning for Bangladesh RMG
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Efficiency Calculator
Line or operator efficiency — SMV, minutes produced and worked.
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Overtime Calculator
Overtime pay at 1.5× or 2× rate — hourly, daily and monthly workers.
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Salary Calculator (Factory)
Factory worker salary with attendance, overtime and deductions.
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Production Target Calculator
Daily and hourly production target from SAM, efficiency and shifts.
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SAM Calculator
Standard Allowed Minutes from operation breakdown, SMV and allowances.
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Manpower Requirement
Operators needed to hit a daily target from SAM and efficiency.
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Line Efficiency Calculator
Actual vs target efficiency with bottleneck analysis and shift data.
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Overtime Cost Calculator
Total overtime cost for the line — per piece and per order impact.
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Capacity Planning Calculator
Monthly production capacity from lines, shifts, days and average SAM.
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Line Balancing Calculator
Calculate pitch time, balance delay, and balance efficiency to solve bottleneck lines.
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DHU Calculator
Defects per Hundred Units (DHU) and defect rate tracking dashboard.
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Machine Requirement
Calculate quantity of specific machines needed to achieve target output.
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OEE Calculator
Overall Equipment Effectiveness from availability, performance and quality — the gold standard for factory productivity.
Washing Plant Hub
Washing cost, chemical and water consumption, shrinkage, ETP cost and boiler fuel calculators for denim and garment washing plants
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Washing Cost Calculator
Total washing cost per piece — labour, chemicals, water, fuel, overhead.
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Chemical Consumption
Chemical dosage and cost per kg of fabric for any wash process.
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Water Consumption
Litres of water per kg of fabric — normal, enzyme and denim wash.
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Steam Consumption
Steam requirement in kg/hr from machine capacity and process temperature.
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Shrinkage Calculator
Warp and weft shrinkage % from before and after wash measurements.
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Production Capacity
Daily garment throughput from machine count, cycle time and load.
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Machine Utilization
Machine utilization % from available and productive hours per shift.
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Rewash Percentage
Rewash rate and cost impact — pieces rejected and re-processed per lot.
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ETP Cost Calculator
Effluent Treatment Plant cost per m³ — chemicals, power and labour.
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Boiler Fuel Consumption
Fuel consumption and cost for steam boiler from efficiency and output.
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Softener Consumption
Calculate chemical softener consumption (g/l or % owf) and pricing for fabric loads.
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Dye Consumption
Textile dyeing recipe calculator for dyes, salt, soda and color costs.