| What it does | Free epoxy resin calculator for mold batches, casting voids and tabletop coatings
| Weekly propane and heating oil prices by state with free home heating cost calculators
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| Founded | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Calculate mold cavity volumes from dimensions or enter known volumes
- Combine multiple molds and piece counts in a single batch plan
- Split totals using product volume or weight ratios
- Add material allowance percentages for wastage
- Estimate kit quantities and material costs
- Support metric and US imperial units
- Save projects locally in browser without creating an account
- Export batch sheets as PDF or CSV
- Calculate deep pour epoxy with layer allocation
- Calculate tabletop coatings with edge coverage
| - Weekly EIA residential propane prices for 38 states
- Regional and state price trends
- Tank fill cost estimates for common tank sizes
- Year-over-year price comparison
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| What makes it different | - Published formulas and methodology transparent with no proprietary hidden calculations
- Calculations cross-checked against a separate Python implementation using 100-digit decimal arithmetic
- Handles irregular molds using known volumes without forcing geometry estimates
- Shares batch plans via URL without storing projects on servers
| - Built from public government data with every price dated and linked to its source
- No sign-up required, everything is free
- Independent tool not affiliated with fuel dealers or utilities
- Calculators use actual government prices and normal weather for accurate estimates
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 19 | 0 |
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| Referring domains (Majestic) | 6 | 0 |
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ResinBatch