Convert Imperial Cups to Milliliters - Volume Converter
Use this converter when a source uses imperial or UK cups and you need milliliters.
This tool assumes the imperial cup definition of 284.13125 mL per cup.
Governance
Record c9313f82bc0f • Reviewed by Fidamen Standards Committee
Interactive Converter
Convert between imperial/uk cup and milliliter with precision rounding.
Quick reference table
| Imperial/UK Cup | Milliliter |
|---|---|
| CUP 1.00 cup (imp) | 284.1313 mL |
| CUP 5.00 cup (imp) | 1,420.6563 mL |
| CUP 10.00 cup (imp) | 2,841.3125 mL |
| CUP 25.00 cup (imp) | 7,103.2813 mL |
| CUP 50.00 cup (imp) | 14,206.5625 mL |
| CUP 100.00 cup (imp) | 28,413.125 mL |
Methodology
We apply the fixed relationship: 1 imperial cup = 284.13125 milliliters.
For regulated or lab use, rely on calibrated equipment and uncertainty-aware rounding.
Worked examples
1 imperial cup equals 1 x 284.13125 = 284.13125 mL
0.5 imperial cup equals 0.5 x 284.13125 = 142.065625 mL
F.A.Q.
Is this the same as a US cup?
No. The imperial/UK cup is larger (284.13125 mL). For US cups, use the US cup converter.
How should I round the result?
For everyday use, rounding to 1-2 decimal places is usually fine; technical use should follow significant-figure guidance.
Further resources
Related tools
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
Record ID: c9313f82bc0fWhat changed (latest)
v1.0.0 • 2026-02-03 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Public QA status
PASS — golden 25 + edge 120
Last run: 2026-01-23 • Run: golden-edge-2026-01-23
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
What changed (latest)
v1.0.0 • 2026-02-03 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Public QA status
PASS — golden 25 + edge 120
Last run: 2026-01-23 • Run: golden-edge-2026-01-23
Engine
v1.0.0
Data
Baseline (no external datasets)
Content
v1.0.0
UI
v1.0.0
Governance
Last updated: Feb 3, 2026
Reviewed by: Fidamen Standards Committee (Review board)
Credentials: Internal QA
Risk level: low
Reviewer profile (entity)
Fidamen Standards Committee
Review board
Internal QA
Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person
Semantic versioning
- MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
- MINOR: New features or fields that do not change existing outputs for the same inputs.
- PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.
Review protocol
- Verify formulas and unit definitions against primary standards or datasets.
- Run golden-case regression suite and edge-case suite.
- Record reviewer sign-off with credentials and scope.
- Document assumptions, limitations, and jurisdiction applicability.
Assumptions & limitations
- Uses exact unit definitions from the Fidamen conversion library.
- Internal calculations use double precision; display rounding follows the unit's configured decimal places.
- Not a substitute for calibrated instruments in regulated contexts.
- Jurisdiction-specific rules may require official guidance.
Change log
v1.0.0 • 2026-02-03 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: 05bc1cfbec46