Lens Edge Thickness Calculator Sphere Power (Diopters) Use negative (-) for nearsighted, positive (+) for farsighted. Refractive Index (n) 1.50 (Standard Plastic/CR-39) 1.53 (Trivex) 1.59 (Polycarbonate) 1.60 (High Index) 1.67 (High Index) 1.74 (Ultra High Index) Lens Diameter (mm) Center…

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Lead Core Line Depth Calculator Estimate your lure depth based on trolling speed and lead core colors. Colors of Lead Core Out: (1 color = 10 yards / 30 feet) Trolling Speed (MPH): Standard range: 1.5 – 3.0 MPH Line…

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Paper Weight (lb) to GSM Calculator Basis Weight (lb): Paper Basis Type: Bond / Writing / Ledger (17″ x 22″) Text / Book / Offset (25″ x 38″) Cover (20″ x 26″) Index (25.5″ x 30.5″) Tag (24″ x 36″)…

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Solar Panel ROI & Payback Calculator Estimate your solar savings and break-even point in seconds. System Size (kW) Avg. residential size is 5-10kW. Total System Cost ($) Gross cost before incentives. Electric Rate ($/kWh) Check your utility bill. Tax Credit…

Commercial Real Estate Loan Calculator Analyze CRE financing, DSCR, and Balloon Payments Loan Amount ($) Annual Interest Rate (%) Amortization Period (Years) Loan Term/Balloon (Years) Annual Net Operating Income (NOI) Calculate Financing Metrics Monthly Payment $0.00 Annual Debt Service $0.00…

LED Power Supply Calculator Strip Length (Meters) Wattage per Meter (W/m) Voltage (V) 5V 12V 24V 48V Safety Margin (%) Calculate Required Power Recommended Power Supply: Total LED Strip Wattage: 0 W Minimum PSU Capacity (with margin): 0 W Required…