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Directory · 202 tools

Free business calculators for Australian businesses

202 free calculators across 112 industries. Search by trade, embed on your site, and capture qualified leads — with GST and your ABN included.

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About the directory

Built for Australian businesses

Leadkit's calculator directory exists because every business with a website has the same problem: visitors want a price before they pick up the phone, and you want a qualified lead before you drive an hour for a measure-up. The 202 calculators in this directory close that gap by giving customers a realistic estimate in under three minutes, then handing you their name, phone, suburb and job value the moment they submit.

Every tool here is built for Australian conventions — GST at 10% included automatically, your ABN on every customer-facing PDF, metric measurements throughout, AUD pricing, and Australian terminology in the copy customers read. Pricing defaults are reviewed against current Australian material and labour rates across 26 industry verticals, and every variable can be overridden to match your local market.

New calculators are added regularly based on customer requests. If the exact tool you need is missing, you can browse by trade to check related categories or request a new calculator — most approved requests go live within days at no charge.

Common questions

Frequently asked

Quick answers for crews trying us out. Need something else? Talk to us.

What is the Leadkit calculator directory?

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Leadkit's directory contains every free embeddable business calculator built for Australian businesses, organised by trade category and use case. You can search by trade, by what the calculator measures, or browse by industry vertical. Every calculator is free to embed on your website and captures qualified leads automatically.

How much do the calculators cost?

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All calculators in the directory are free to use and free to embed on up to 5 pages with Leadkit branding. Upgrade to Pro for $29 AUD per month for unlimited calculators with full white-label (your logo, your domain on outgoing emails, no Leadkit branding). Agency plans start at $150 AUD per month for unlimited workspaces.

Which industries are covered in the calculator directory?

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The directory covers trades and construction (painting, plumbing, electrical, roofing, concreting, bathroom and kitchen renovation, landscaping, fencing), finance and lending (home loans, stamp duty, rental yield, investment property), health and wellness (BMI, macro, peptide dosage), real estate and property, energy and solar, and legal and professional services. New categories are added regularly based on customer requests.

How do I choose the right calculator for my business?

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Start by browsing the category that matches your trade or industry — each category page shows the available calculators with descriptions. If you can't find what you need, use the search to look by job type, measurement, or customer question. Requesting a new calculator is free; approved requests typically go live within days.

What is the difference between estimate and reference calculators?

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Estimate calculators (also called quote calculators internally) produce a full job estimate using your rates and capture the customer's contact details before showing the breakdown — designed to generate qualified leads. Reference calculators (or info calculators) show a result immediately without gating it, with an optional soft email capture below — designed for lighter-intent lookups like BMI, loan repayments, or dosage calculations.

Do all calculators in the directory include GST and Australian compliance?

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Yes — every calculator handles GST at 10% automatically and displays it as a separate line on customer-facing estimates and PDFs. Your ABN appears on all customer-facing documents. The calculators are built for Australian pricing conventions, with metric measurements, AUD pricing, and Australian terminology throughout.

Can I embed the calculators on any website?

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Yes — one snippet of code embeds any calculator on WordPress, Webflow, Squarespace, Wix, Shopify, or a custom-built site. The calculator inherits your site fonts where possible and uses your logo and brand colour. If you do not have a website, every Leadkit account includes a free auto-generated quote page at leadkit.com.au/quote/your-business that you can share on Instagram, Google Business Profile, or your email signature.

Is Leadkit really free?

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Yes. Free lets you add up to 3 calculators to your website and receive 10 leads per month — no credit card. Every lead beyond the cap is still captured and held for you; upgrading to Pro ($29/mo) opens them all retroactively and removes the cap.

Do I need to know how to code?

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No. You get an embed code (one line of HTML). Paste it into your website builder — Wix, Squarespace, WordPress, or any custom site. That's it.

How accurate are the price estimates?

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You configure the calculator formulas to match your actual pricing. Leadkit provides the framework; you set the numbers. Estimates can be as detailed or as rough as you like.

What happens with lead data?

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All lead data is stored securely in your workspace. You own it. We never sell or share your leads with anyone.

Can I use Leadkit as an agency for multiple clients?

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Yes — our Agency plan lets you create and manage separate workspaces for each of your clients, all from one dashboard.

What's the difference between the plans?

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Free: up to 3 calculators, 10 leads/month (over-cap leads held + locked until upgrade). Pro: unlimited leads, unlimited calculators, white-label, branded email sending, analytics, email templates. Agency: everything in Pro plus multi-workspace management.