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Sleep Calculator
Best bedtime & wake-up cycles
BMI Calculator
Body mass index & classification
Water Intake
Daily hydration targets
Mortgage Calculator
Monthly payment & amortization
Electricity Bill
Cost by kWh & tariff
Pregnancy Calculator
Track weeks & milestones
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ROI Calculator
Return on investment & profit %
Compound Interest
Future value with compounding
Loan Payment
Monthly payment & total interest
☀️ Energy & power
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Solar Panel Calculator
Panel sizing & output estimate
Electricity Bill
Usage cost by kWh & tariff
Energy Consumption
Device energy usage breakdown
⚡ Electricity & physics
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Ohm’s Law Calculator
V = I × R with transformations
Voltage Drop
Wire length, gauge & drop
Resistor Color Code
Bands to resistance & tolerance
💪 Health & fitness
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BMI Calculator
Body mass index & risk levels
Ideal Weight
IBW formulas & healthy range
Water Intake
Daily hydration targets
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