NicheBrain · United States

Conduit Fill Calculator

Catalog snapshot is United States. Dual-score: rankability first, business second. Playbook only after the SERP.

Does this seed lead to low-hanging fruit?

Room to take a slot

Four sites under DR 20, a dedicated homepage at #3, and several aging Java applets still ranking. This is a build.

76/100

Rankability

68/100

Business

880/mo

Top · US

1.5k/mo

Global

High DR (>50)

Mid DR (30–50)

Low DR (<30)

Homepages

Tool / software91% conf.Pure tool intent. NEC Chapter 9 math. Field use, often on a phone.

Nearby winnable seeds

Related directions

Revenue estimate · AI — not guaranteed

If you rank #1–#3

Tier 1 display ads · volume 880/mo in United States

Rank #1

$26/mo

$20 – $34

Rank #2

$17/mo

$13 – $22

Rank #3

$11/mo

$8 – $15

Tier 1 display × 880/mo US.

💼 Affiliate

Conduit, fittings, Southwire

$60–$180 after the fill result.

📦 Product

Shared PWA with voltage drop

Same $39/yr vault. Two keywords, one product.

Google Top 10 · United States

Ranking pages in the top market

Green rows = DR under 20. Metrics are whole-domain, not page URL.

28.4k

Median site BL

4.1k

Median site RD

#	Site	Type	DR	UR	BL	RD	Traffic
1	southwire.com Conduit Fill Calculator	product	72	40	28.4k	4.1k	310k
2	calculator.net Conduit Fill Calculator	product	91	55	2.1M	86k	12.4M
3	conduitfillcalculator.com Conduit Fill Calculator	product	16	14	380	70	7.2k
4	electrician2.com Raceway Fill Calculator	product	22	18	980	210	9.1k
5	cerrowire.com Conduit Fill Calculator	product	48	26	3.4k	620	22k
6	allowablefill.com Allowable Fill Calculator	product	11	10	140	32	1.9k
7	youtube.com How to Calculate Conduit Fill	video	99	97	21M	5.4M	2.1B
8	reddit.com Conduit fill — 12 THHN in 3/4 EMT?	ugc	95	91	54M	3.1M	480M
9	engineeringtoolbox.com Conduits — Fill Area	docs	90	58	890k	64k	1.8M
10	nicinc.com Conduit Fill Chart & Calculator	docs	19	14	260	48	2.4k

No AI Overview — classic results only.

Dual score · with raw facts

Why the numbers landed here

Rankability answers "can a new site rank?" Business answers "is there money if it does?" Each bar is tied to a fact from this SERP — not a vibe.

Demand
Moderate
55/100
US 880/mo · global 1,500/mo. Steady trade demand.
Room
Strong
82/100
Top 10: 4 DR < 20 · lowest DR 11 · 2 dedicated homepages.
Money
Moderate
61/100
Ads ~$26 at #1. Pair with voltage drop as one product.
Trend
Moderate
50/100
Flat-to-up with data-center and solar conduit work.
Gap
Strong
78/100
Java/Flash-era UIs. No mixed-wire lots. No offline.

Keyword clusters

Scored children, not a word list

Fill variants

Transactional

Keyword	Vol	Rankability	Lowest DR	Intent
emt conduit fill calculator	320	80	11	Tool
pvc conduit fill calculator	210	77	13	Tool
box fill calculator	390	69	16	Tool

Playbook · grounded in this SERP

What to build if you still go

Positioning

Phone-first conduit fill that handles mixed wire sizes, EMT/PVC/IMC, and a basement with no signal. Same product family as voltage drop.

Audiences

Electricians pulling mixed lots

Charts assume one wire size. Real jobs mix #12 and #10. Old Java tools choke.

📍 r/electricians, job-site group chats

Content / product gaps

Mixed-size lots on mobile

Dedicated homepages at DR 11 and 16 still rank with single-size tables.

→ Add-a-wire UI, running fill % as you go

Monetization

Bundle with voltage drop in one PWA

One paywall, two GO keywords, one audience.

Medium

14-day plan

Days 1–7

Mixed THHN lots, EMT/PVC, 40% vs 53% fill rules.
Install prompt after second use (PWA).

Days 8–14

Internal link from voltage-drop result: 'Check fill for this run'.
One Reddit worked example, no link dump.

Risks

⚠️ NEC table disputes

Show Chapter 9 table numbers next to every result.