| What it does | Free online calculators with step-by-step workings and cited sources, embeddable on any website
| Free online cubic yard calculator for soil, mulch, gravel, sand and concrete
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| Stage | Startup
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| Founded | 2026
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| Based in | GB
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| Pricing model | Freemium
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| Pricing | Free plan: all calculators with ads, 5 saved calculations, 1 private link. Personal: $29 USD/year or $5/month with unlimited saved calculations, no ads, PDF and CSV export. Advisor: $149 USD/year or $19/month with client-facing branding, scenarios grouped by client, one PDF per client, and priority
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| Key features | - 1,336 calculators across 23 categories
- Step-by-step calculation workings shown live
- Cited sources on every calculator page
- Save and compare scenarios side by side
- Embed calculators on your website with three lines of code
- Update shared figures once across all embeds
- Export results as PDF or CSV
- Reusable assumption profiles
- Private read-only links with expiration
- Client management and reporting features
| - Mixed unit input across feet, inches, yards, millimeters, centimeters and meters
- Results in cubic yards, cubic feet and cubic meters
- Optional waste percentage and quantity multiplier
- Cost estimation with custom pricing per unit
- Seven specialized calculators for different materials
- In-browser calculations with no data storage
- Weight and density calculations for gravel, topsoil and sand
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| What makes it different | - Visible calculation working for every result, so you can inspect the math rather than trust blindly
- Every calculator declares its method and sources in code with checked examples
- Free embedding with your own branding and no tracking of readers
- Similar calculators are consolidated to one preferred page to avoid duplicate search results
| - Free with no signup required and unlimited calculations
- Explains formulas and working so users can verify calculations
- All calculations run in browser without storing personal data
- Supports any combination of metric and imperial units
- Tested results with 150+ automated checks before updates
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 23 ▼ −1 (down) since last check | 1 ● no change since last check |
| Trust Flow (Majestic) | 24 | 0 |
| Citation Flow (Majestic) | 34 | 12 |
| Referring domains (Majestic) | 88 | 4 |