Professional solar tools.
Built for the field.
Live panel specs from Sunhub inventory — real dimensions, weight, and pricing by wattage and brand, instantly.
7
Professional Tools
System sizing to freight
57
Electrical Converters
Instant bidirectional
50
States Covered
ZIP-based irradiance
Free
No Account Needed
Always open access
7
Tools
50
States
Free
Always
Calculator Hub
7 professional tools.
Zero cost.
Every tool built for B2B solar workflows, from initial scoping to procurement-ready BOMs.
Enter any wattage and instantly see real dimensions, weight, and live pricing from Sunhub inventory — with brand-level filtering.
Complete BOM with panel count, inverter quantity, cost range, and freight pallets for residential through utility-scale.
Calculate exact module quantities and pallet requirements for any target DC capacity.
Determine string inverter counts based on DC size, ratio, and inverter AC rating.
Analyze inverter loading ratio, clipping losses, and utilization percentage.
Size energy storage systems with DoD-adjusted capacity for backup duration requirements.
57 bidirectional conversion tools: Watts, Volts, Amps, kWh, Ah, kVA, Joules, and more.
Calculate NMFC class, pallet count, shipping weight, and estimated cost for panel shipments across the US.
Why Sunhub Calculator Hub
Stop juggling
spreadsheets.
Most solar professionals waste hours on manual calculations, cross-referencing spec sheets, and building BOMs from scratch. Our tools give you engineering-grade output instantly.
System sizing from 5 kW residential to 100 MW+ utility
Cost ranges indexed to Sunhub Marketplace reference rates
Freight estimation with real ZIP-to-ZIP distance calculation
Direct procurement path to live Sunhub inventory
Quick System Sizing
10 kW Residential · Phoenix, AZ
Panels
25
Cost/W
$1.50
Pallets
1
Payback
7.1 yr
Simple Process
From estimation to
procurement in 3 steps
Enter your project details
Start with your ZIP code and target system size. Our tools auto-populate region-specific data like irradiance and freight zones.
Get instant engineering output
Panel counts, inverter quantities, cost ranges, storage sizing, and freight estimates, calculated in real-time.
Procure directly on Sunhub Marketplace
Move from estimation to procurement. Your calculations link directly to live inventory and bulk quote requests on Sunhub Marketplace.
Why Choose Sunhub
Built different. Built for pros.
Marketplace-Indexed Pricing
Cost estimates derived from Sunhub Marketplace reference rates for Tier 1 equipment. Rates update with market conditions.
Location-Aware Calculations
Enter a ZIP code and get region-specific irradiance data, freight zone classification, and distance-based shipping estimates. 48,000+ US ZIPs.
Tool-to-Tool Integration
Results flow between tools. System Sizing feeds Freight Estimator. Inverter Quantity feeds DC/AC Ratio.
No Login Wall
All engineering calculations accessible without an account. Only BOM cost access requires quick business verification.
Nationwide Coverage
From residential rooftops in New England to utility-scale farms in the Southwest. All 50 states, all project types.
Procurement-Ready Output
Generate BOMs ready for submittal and marketplace fulfillment. Every calculation links to live Sunhub inventory.
FAQ
Common questions
Real panel specs.
Procure on Sunhub when you're ready.
No account required. No credit card. Professional-grade tools for solar professionals.