Estimate your boat insurance needs with our Boat Insurance Calculator. Calculate the right levels of cover to protect your marine craft and your financial livelihood.
Calculator results are estimates only and not quotes. Actual quotes will be provided by licensed brokers after you submit an enquiry.
Boat Insurance – Sum Insured Calculator
Add up the replacement cost of your hull, motors, trailer and onboard gear so you don’t underinsure.
Work through the steps and we’ll total your items into a clear summary for a quote request.
Step 1 of 6
1) Vessel details & GST mode
Enter your boat basics, choose how totals should display, then add the hull/base vessel value.
Commercial policies often set sums insured ex-GST if you can claim input tax credits.
Shown on your summary only.
Do not include motors, trailer or loose gear here. Enter the amount ex-GST.
Next: add your motor(s) (or skip if not applicable).
2) Motor(s)
List each outboard/inboard separately (type/HP + replacement value). Use the GST toggle if your number includes GST.
3) Trailer (optional)
If you have a trailer, add it here as a separate replacement value.
Covers/bimini/canopy, electronics/audio, tender/dinghy, watersports or fishing gear, custom fittings.
6) Results
Calculate your recommended sum insured and review the breakdown.
When you’re ready, calculate your total sum insured.
Heads-up: Personal effects, racing cover, mechanical breakdown, and liability are separate considerations and may not be part of the boat's sum insured. Ask us about optional covers.
Calculator outputs are estimates only and do not constitute quotes. Actual quotes will be provided by a licensed broker after you submit an enquiry.
How to use our Boat Insurance Calculator
Our Boat Insurance Calculator helps you estimate an appropriate boat insurance sum insured by adding up the replacement cost of your hull (base vessel), motor(s), trailer and onboard gear. This is important because underinsuring can leave you out of pocket after a theft, fire, storm or total loss, while overinsuring may increase premiums without improving your claim outcome. The result is an organised breakdown you can use when requesting a boat insurance quote or reviewing an existing marine insurance policy.
How to complete the calculator (in order) for the best result:
1. Boat type: Select the option that best matches your craft (for example runabout, cruiser, yacht/sailing, PWC/jet ski). This helps describe the risk and the kind of equipment you may need to include.
2. Make, model and year: Enter identifying details so your summary is clear and easy to validate later.
3. Hull or base vessel value (replacement): Enter the replacement cost of the hull only. Do not include motors, the trailer or loose gear in this field.
4. Motor(s): Add each outboard or inboard separately (description such as type/HP and its replacement value). This avoids missing twin engines or auxiliary motors.
5. Trailer (optional): Add your trailer replacement value if you want it included in the total.
6. Onboard equipment: Add items like navigation electronics, radios, anchors, sails and rigging, and safety gear. List meaningful items individually for accuracy.
7. Accessories and personal or recreational gear: Add covers, audio, tender/dinghy, fishing or watersports gear and custom fittings.
8. GST treatment: Choose whether totals should be shown including GST (typical for personal use) or excluding GST (often relevant if GST-registered and able to claim input tax credits).
9. Financier (optional): Add lender details to appear on your summary.
How to interpret the results:
1. Recommended sum insured: This is the total of the values you entered, giving a practical starting point for your boat insurance sum insured.
2. Itemised summary and JSON summary: Use the breakdown to sense-check values, update for recent upgrades, and share consistent information when seeking quotes.
Important: This calculator provides estimates only and does not constitute a quote or personal advice. It does not assess every insurance need (for example liability, personal effects, racing cover, mechanical breakdown). Consider your objectives, financial situation and needs, and read the relevant product disclosure information before deciding.
Boating offers a unique escape and a chance to explore Australia's stunning waterways. For many, owning a boat is a dream come true, providing endless adventures and cherished memories with family and friends. - read more
When it comes to purchasing a boat, most individuals require some form of financing. To secure the best possible loan terms and increase the chances of approval, it is essential to build a strong boat financing application. This article will provide tips and tricks specifically tailored for Australians on how to create a compelling application that stands out to lenders. - read more
When you're embarking on the adventure of buying your first boat, understanding interest rates becomes crucial. But what are interest rates exactly? In the context of loans, they represent the cost of borrowing money, expressed as a percentage of the loan amount. Essentially, it’s the price you pay for the financing that makes your dream of boat ownership a reality. - read more
Welcome, fellow boating enthusiasts! Whether you're looking to sail the coasts of Australia or enjoy leisurely days on the water, financing a boat can be a thrilling adventure. However, securing the right marine insurance policy goes hand-in-hand with this exciting journey, and it's an absolute must. - read more
Buying a used boat can be an exciting adventure, but it can also be a daunting task. It's important to remember that purchasing a high-quality used boat is crucial for your safety and enjoyment on the water. Australia's vast coastline and numerous waterways make it a prime location for boating enthusiasts, but with so many options available, it's easy to fall into common traps. - read more
Buying a boat is a relatively large financial outlay and most people need to finance their purchase. If you’re in the market for a boat and plan to apply for a boat loan, there are a few things you should know if you want to get the best deal available. Here are our 7 tips for getting the best boat loan. - read more
Sydneys biggest boating showcase is preparing to return to Sydney Showground at Sydney Olympic Park from 30 July to 2 August 2026, with the Boating Industry Association confirming a broad line-up of more than 120 local and international exhibitors. For prospective buyers, the timing is important: major shows can create excitement, but they can also compress purchase decisions into a busy few days. - read more
Fresh Australian boat loan comparison data updated on 30 June 2026 shows a clear message for anyone planning a purchase: the headline interest rate is only one part of the finance decision. With lenders offering different structures, fees, loan terms and eligibility settings, buyers who compare carefully may be better placed to avoid unnecessary costs over the life of their loan. - read more
The Boating Industry Association has marked a significant leadership milestone, electing Tracy Souris as its new Board Chair and President on 12 May 2026. Souris becomes the first woman to lead the organisation since it was established in 1960, taking over from Adam Smith after his six years of service on the BIA Board. - read more
New Zealand-based company Vessev is set to revolutionise water transport in Western Australia by introducing a fleet of electric hydrofoiling vessels on Perth's Swan River. In partnership with the ENAUTIC Group, Vessev aims to provide a sustainable and efficient solution to the region's transportation needs. - read more
The Australian Competition and Consumer Commission (ACCC) has recently blocked the proposed sale of Telwater Pty Ltd., one of Australia's largest aluminium boat manufacturers, from BRP Inc. to Yamaha Motor Australia. This decision ensures that Telwater remains under BRP's ownership for the foreseeable future. - read more
The Australian Transport Safety Bureau (ATSB) has released a preliminary report detailing the circumstances surrounding the grounding of the Australian Antarctic Division's research vessel, RSV Nuyina, off Heard Island on October 13, 2025. The incident occurred during drone survey operations near uncharted sea floor areas. - read more
