Trade & Professional Services Calculators
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Get fast, accurate estimates for your trade with our professional services calculators. Calculate HVAC loads, plumbing pipe sizes, electrical wire gauges, and landscaping materials. Trusted by contractors and service pros.

Embed These Calculators
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Embed on your service or project pages. Use the full-page embed or link to a specific calculator via the hash anchor. Adjust height as needed.

Full page embed:

<iframe src="https://strtly.com/calculators/trade-professional/?embed=1" width="100%" height="1060" style="border:0;max-width:100%"></iframe>
<div style="text-align:right;font:400 12px/1.4 system-ui;margin-top:4px">Calculator by <a href="https://strtly.com/calculators/trade-professional/" target="_blank" rel="noopener">Strtly</a></div>

Per-calculator embeds:

<!-- HVAC Load (Simple Estimate) -->
<iframe src="https://strtly.com/calculators/trade-professional/?embed=1#hvac-load-calculator-simple-estimate" width="100%" height="660" style="border:0;max-width:100%"></iframe>
<div style="text-align:right;font:400 12px/1.4 system-ui;margin-top:4px">Calculator by <a href="https://strtly.com/calculators/trade-professional/" target="_blank" rel="noopener">Strtly</a></div>

<!-- Plumbing Pipe Sizing -->
<iframe src="https://strtly.com/calculators/trade-professional/?embed=1#plumbing-pipe-sizing-calculator" width="100%" height="700" style="border:0;max-width:100%"></iframe>
<div style="text-align:right;font:400 12px/1.4 system-ui;margin-top:4px">Calculator by <a href="https://strtly.com/calculators/trade-professional/" target="_blank" rel="noopener">Strtly</a></div>

<!-- Electrical Wire Gauge -->
<iframe src="https://strtly.com/calculators/trade-professional/?embed=1#electrical-wire-gauge-calculator" width="100%" height="700" style="border:0;max-width:100%"></iframe>
<div style="text-align:right;font:400 12px/1.4 system-ui;margin-top:4px">Calculator by <a href="https://strtly.com/calculators/trade-professional/" target="_blank" rel="noopener">Strtly</a></div>

<!-- Landscaping Material -->
<iframe src="https://strtly.com/calculators/trade-professional/?embed=1#landscaping-material-calculator" width="100%" height="700" style="border:0;max-width:100%"></iframe>
<div style="text-align:right;font:400 12px/1.4 system-ui;margin-top:4px">Calculator by <a href="https://strtly.com/calculators/trade-professional/" target="_blank" rel="noopener">Strtly</a></div>

HVAC Load Calculator (Simple Estimate)
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Area (sq ft):

Climate Zone:

Plumbing Pipe Sizing Calculator
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Total Fixture Units:

Pipe Length (ft):

Electrical Wire Gauge Calculator
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Current (Amps):

Distance (ft):

Landscaping Material Calculator
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Length (ft):

Width (ft):

Depth (inches):

Frequently Asked Questions
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How do I size plumbing pipes for my project?

Pipe size depends on total fixture units and pipe length. Our calculator gives a quick estimate for residential projects. Always check local codes.

How do I choose the right wire gauge?

Wire gauge depends on current (amps) and distance. Our calculator uses common NEC guidelines for copper wire. Always consult an electrician for safety.

How do I calculate landscaping material?

Multiply length × width × depth (in feet), then divide by 27 to get cubic yards. Our calculator does this for you and works for mulch, soil, or gravel.