Merops contains over 220 customizable rules relating to the presentation of numbers and formulae, as well as terms relating to numbers, such as times, dates, units and currency.

The information below describes just a small percentage of the rules Merops can apply to numerical terms.

Merops can automatically standardize the punctuation and spacing of:

- large numbers (e.g. 1,234,567)
- ratios
- number grouping after decimal point (0.000 01)

Merops can automatically standardize characters such as:

- decimal point character
- en rule/hyphen in ranges
- minus sign in negative numbers
- the prime character

Merops can convert between words and figures, based on context and size, for example:

- 3 → three
- 3 (in a French sentence) → trois
- twenty → 20
- 3rd → third
- 20 (at sentence start) → Twenty
- 20 million ↔ 20,000,000
- tenfold ↔ 10-fold
- less than ↔ <

Many of these rules are context-specific. For example, the number 1000 in general text, but 1 000 in tables. Also, Merops is clever enough to avoid making changes to numbers that are not counts or ranges (e.g. telephone numbers).

Merops can standardize the presentation of currency.

For example:

- standardization of words/figures (ten pounds sterling ↔ £10)
- standardization of ranges ($4-6 ↔ $4-$6)
- alerts on the potentially ambiguous use of $ or 'dollar'

In technical documents it is critical that mathematical terms are presented consistently. Merops contains rules to correct author discrepancies, and converts between alternative math formats.

Merops standardizes symbols such as Greek letters and operators, e.g.:

- 20 +/- 12 → 20 ± 12
- 2 X 4 → 2 × 4

Merops standardizes the formatting of functions, variables and operators:

*ln(sin x*→ ln(sin χ_{max}^{2})_{max}^{2})- a+b =c →
*a*+*b*=*c*

Merops can convert:

- simple MathType equations to normal text;
- MathType equations to Microsoft Word equations;
- displayed text equations to Microsoft Word equations.

These equations can be encoded as MathML in your XML file.

Merops can standardize the presentation of statistical variables. For example:

- Student t test → Student’s t-test
- F(1, 24) = 2.36 → F
_{1,24}= 2.36 - Anova → ANOVA
- p >0.01 →
*P*> .01

Merops can standardize the presentation of times and dates, e.g.:

- 4pm ↔ 16.00 hours
- 4pm ↔ 4 p.m.

- Sept. 24, 1978 ↔ 24th September 1978
- BC ↔ B.C.
- nineteenth century ↔ 19th century
- 11/11/2014 ↔ 11/11/14

Merops identifies and standardizes the case, formatting, and spelling of SI and Imperial units of measurement.

Merops can automate conversions between unit standards, e.g.:

- 40–100ug/ml → 40–100 µg mL
^{–1} - 5kg–10kg ↔ 5–10kg

Merops can automatically convert units from Imperial to metric, or Fahrenheit to Celsius, or vice versa.

Merops has over 50 preferences for individual units and contexts. For example:

- 99.5% ↔ 99.5 percent
- 10 seconds ↔ 10 s
- 2 hours ↔ 2 hrs

Merops can standardize certain units in different contexts, i.e. general text, tables, parentheses, compound units, table captions/legends, and footnotes.