Nemin.io offers five free calculators for planning marketing and web budgets: Website Cost, SEO Cost, Google Ads Budget, ROI and Email Campaign ROI. This guide shows exactly how each Nemin.io marketing calculator reaches its number, works through a realistic example and points out the assumptions that can quietly change your result. For the full list of 11 tools, see our complete guide to Nemin.io.
Nemin.io Website Cost Calculator
The Nemin.io Website Cost Calculator asks for the number of pages, design quality (Basic, Standard or Premium), platform (WordPress, custom or ecommerce), pages needing content writing, months of maintenance and an SEO setup level.
The formula
- Page build = pages × $180 × design multiplier (Basic 1, Standard 1.35, Premium 1.8)
- Platform setup: WordPress $500, custom $1,200, ecommerce $2,200
- Content: $90 per page needing copy
- Maintenance: $80 per month
- SEO setup: none $0, basic $300, advanced $750
- Estimated range = 90% to 115% of the total
Worked example
An 8-page WordPress site with Standard design, copy for 5 pages, 6 months of maintenance and basic SEO setup:
- Base estimate: (8 × $180 × 1.35) + $500 + $450 + $480 + $300 = $3,674
- Range: $3,306.60 – $4,225.10
- Per page: $459.25
What to watch
The per-page figure includes platform setup, copy, maintenance and SEO, so it isn’t a pure design price. The dollar amounts are fixed assumptions, so a freelancer in a lower-cost market or a large U.S. agency could quote very differently.
Nemin.io SEO Cost Calculator
The Nemin.io SEO Cost Calculator uses target keywords, campaign type, website size, blog posts per month, target locations and a growth goal.
The formula
- Campaign type: local $350, regional $700, national $1,300
- Website size: small $200, medium $450, large $800
- $30 per target keyword, $120 per monthly blog post, $60 per target location
- Growth goal multiplier: steady × 1, competitive × 1.2, aggressive × 1.45
Worked example
A local business with a medium-sized site, 15 target keywords, 4 blog posts a month, 2 locations and steady growth: $350 + $450 + $450 + $480 + $120 = $1,850 a month, or $22,200 a year, about $123.33 per keyword.
Switch the same inputs to a national campaign with competitive growth and the monthly budget rises to $3,360. Campaign type and growth goal are the two biggest levers in this tool.
Nemin.io Google Ads Budget Calculator
The Nemin.io Google Ads Budget Calculator works backwards from the leads you want each month, your landing page conversion rate, your average cost per click and any monthly management fee.
The formula
- Clicks needed = desired leads ÷ conversion rate
- Ad spend = clicks × average CPC
- Total monthly budget = ad spend + management fee
Worked example
You want 40 leads a month, your landing page converts at 5%, clicks cost $3.50 and management costs $500. You need 800 clicks, $2,800 in ad spend and a $3,300 total budget.
What to watch
Conversion rate has an outsized effect. In the same example, raising the landing page conversion rate from 5% to 8% cuts the clicks needed to 500 and ad spend to $1,750. The tool assumes CPC and conversion rate stay stable, which they rarely do in the first weeks of a campaign.
Nemin.io ROI Calculator
The Nemin.io ROI Calculator takes revenue generated and total cost and applies the standard formula: ROI = (revenue − cost) ÷ cost × 100. A campaign that brings in $15,000 for $5,000 in total costs gives $10,000 profit, 200% ROI and a 3.00x revenue-to-cost ratio.
The quality of this answer depends on what you count as cost. Include ad spend, tools, freelancer fees and staff time, not just media spend, or the ROI will look better than it is.
It also helps to compare like with like. Run the Nemin.io ROI Calculator for each channel over the same time period, such as one month of Google Ads against one month of email, so the percentages are a fair comparison.
Nemin.io Email Campaign ROI Calculator
The Nemin.io Email Campaign ROI Calculator asks for list size, open rate, click rate, conversion rate, average order value and campaign cost.
The formula
- Opens = list size × open rate
- Clicks = opens × click rate
- Orders = clicks × conversion rate
- Revenue = orders × average order value
- ROI = (revenue − campaign cost) ÷ campaign cost × 100
Worked example
A list of 10,000, a 25% open rate, a 4% click rate, a 3% conversion rate, a $60 average order value and a $200 campaign cost give 2,500 opens, 100 clicks, 3 orders, $180 revenue and an ROI of −10%.
The detail most people miss
Nemin.io applies the click rate to opens, not to the whole list. That makes it a click-to-open rate (CTOR). Many email platforms report a click-through rate measured against all delivered emails, which is a much smaller number. If you type that smaller figure in here, the tool will understate your clicks, orders and ROI. Check which rate your email platform reports, or work out click-to-open yourself as clicks ÷ opens, before you use this calculator.
Quick Reference: Nemin.io Marketing Budget Calculators
| Tool | Type | Example result |
|---|---|---|
| Website Cost | Built-in prices | $3,306.60 – $4,225.10 |
| SEO Cost | Built-in prices | $1,850/month |
| Google Ads Budget | Pure formula | $3,300/month |
| ROI | Pure formula | 200% ROI |
| Email Campaign ROI | Pure formula | −10% ROI |
Nemin.io Marketing Calculator FAQs
Is the Nemin.io SEO Cost Calculator accurate?
It applies a consistent set of built-in U.S. prices to your inputs, so it is useful for comparing scenarios and setting a ballpark. It is not a quote, and real agency pricing varies widely by market and provider.
Does Nemin.io connect to Google Ads or my email platform?
No. Every Nemin.io calculator works only on the numbers you type in. Nothing connects to your ad or email accounts.
Where can I use the Nemin.io calculators?
All Nemin.io calculators are free to use at nemin.io, directly in your browser with no account or sign-up.
For freelancer rates, agency retainers, social media pricing, profit margin and break-even, read our guide to the Nemin.io pricing calculators.
See every free business, marketing, pricing and planning calculator in one place on the Nemin.io homepage.
