How do I calculate how much epoxy resin I need?

To calculate how much epoxy resin you need, measure the inner length, width, and depth of your project in centimeters. Multiply them together (Length × Width × Depth) to determine the volume in cubic centimeters, which equals milliliters (ml). Next, add a 5% to 10% safety margin for mixing vessel cling and wood absorption, and divide the total volume by your manufacturer's mixing ratio (e.g., 2:1 or 1:1) to determine the exact resin and hardener requirements.

How to calculate for epoxy?

Calculating for epoxy requires two steps: calculating void volume and calculating the mixing split. For square or rectangular forms, use V = L × W × H. For cylindrical forms, use V = π × r² × H. Once you determine the total liquid volume in milliliters or fluid ounces, apply your resin's stoichiometric ratio to dispense Part A and Part B accurately.

How to calculate for resin?

To calculate for resin, always convert project dimensions to a unified unit (such as centimeters or inches). For metric measurements in centimeters, each cubic centimeter of mold volume requires 1 ml of mixed resin. If measuring in inches, multiply Length (in) × Width (in) × Depth (in) × 0.554 to convert cubic inches directly into fluid ounces.

How to calculate epoxy amount?

To find the total epoxy amount, calculate the physical displacement of the cavity. For a standard 30 × 30 cm serving tray poured 1 cm thick, the displacement is 900 cm³ (900 ml). With a recommended 10% buffer for squeegee and cup residue, the total epoxy amount is 990 ml. For a 2:1 system, this breaks down to 660 ml of Part A resin and 330 ml of Part B hardener.

How to calculate resin for a river table?

For a river table, measure the total board length and determine the average void width by taking measurements at 5 to 10 evenly spaced points along the live edge. Multiply Length × Average Width × Slab Thickness to estimate volume. Since live-edge timber absorbs resin and features irregular voids, add a 10% to 15% wastage buffer.

How much epoxy do I need for a 10x10 coaster?

For a square 10 × 10 cm coaster poured to a standard depth of 0.5 cm, the net volume is 50 ml (10 × 10 × 0.5). Adding a 10% buffer brings the total to 55 ml. In a 1:1 epoxy system, mix 27.5 ml of Resin (Part A) with 27.5 ml of Hardener (Part B). For a set of 4 coasters, you will need 220 ml in total.

What is the 2:1 resin ratio by weight vs volume?

A 2:1 volume ratio means 2 parts resin to 1 part hardener by liquid measure. Because Part A epoxy resin has a higher specific gravity (~1.15 g/ml) than Part B amine hardener (~1.00 g/ml), the scale weight ratio is approximately 2.3:1 by weight (100g Resin to ~43.5g Hardener). Always confirm weight ratios with our calculator to prevent sticky resin.

How do you calculate epoxy resin in liters or gallons?

To calculate liters, divide total cubic centimeters (or milliliters) by 1,000 (e.g., 2,500 ml = 2.5 Liters). To calculate US gallons, calculate cubic inches and divide by 231 (1 US liquid gallon = 231 cubic inches = ~3,785 ml). For example, a river table requiring 15,000 ml requires 3.96 US gallons of epoxy.

Privacy Policy — EpoxyResin-Calculator.com

1. Client-Side Calculation Privacy

EpoxyResin-Calculator.com ("we", "us", or "our") is engineered as a privacy-first utility micro-tool. We do not require user accounts, logins, passwords, email subscriptions, or billing details to access any part of our calculator suite.

All dimension values (Length, Width, Diameter, Depth, Margin of Error, and Specific Gravity ratios) entered into the calculator are evaluated strictly in your local browser runtime memory via client-side JavaScript. We do not capture, log, or transmit your workshop dimensions, proprietary mold measurements, or resin recipes to our servers or any third-party database.

2. Web Analytics (Google Analytics 4)

To understand how visitors interact with our calculators, diagnose technical issues, and improve our guides and internationalization features, we use Google Analytics (Google LLC).

Google Analytics collects non-personally identifiable aggregate telemetry such as:

Approximate geographic location (country and city level; IP addresses are anonymized by default in GA4);
Browser type, device model, operating system, and screen resolution;
Referral sources (e.g., search engine queries, referring websites);
Page visits, navigation paths, session duration, and feature interactions (such as unit switches or language selections).

Google Analytics does not collect personally identifiable information (PII) like names or physical addresses, and it does not link your website visits to personal identity records. For more details on how Google handles data, please consult How Google uses information from sites or apps that use our services and the Google Privacy Policy.

3. Cookies and Tracking Technologies

Google Analytics utilizes first-party cookies (small text files stored on your device, such as _ga and _ga_*) to distinguish unique visitors and record aggregate traffic metrics across sessions.

In addition, we use browser localStorage strictly for functional preferences: preserving your dark/light theme choice and your preferred measurement system (Metric vs. Imperial) so that your preferred unit settings persist between visits.

4. Managing and Opting Out of Analytics

You have full control over cookie storage and analytics tracking:

Browser Cookie Controls: You can configure your browser to block or delete cookies at any time via your browser settings.
Google Analytics Opt-Out: You can install the official Google Analytics Opt-out Browser Add-on to prevent data collection across all websites.
Content Blockers: Standard ad blockers and privacy extensions (such as uBlock Origin or browser tracking prevention) block analytics requests without impacting any calculator features.

5. Hosting and Edge Infrastructure

Our static site assets are delivered globally via Cloudflare Pages. Cloudflare processes transient HTTP connection metadata (IP addresses, request headers) strictly for essential security functions, including DDoS mitigation, bot defense, and edge caching.

6. Clipboard Functionality

The "Copy Workshop Recipe" feature utilizes standard browser Clipboard APIs solely to copy the formatted text summary to your clipboard when you click the button. No clipboard contents are accessed, read, or transmitted.

7. Contact Information

If you have questions regarding this privacy policy or our analytics implementation, please contact us at support@epoxyresin-calculator.com.